Q&A Hero

Q: ejaculation Choose the one most appropriate answer for each. a. the production and secretion of milk b. sloughing off of endometrium stops permanently c. induced dislodging and removal of an embryo or fetus from the uterus d. an abortion that occurs spontaneously e. the burrowing of the blastocyst into the uterine lining f. the release of an egg from the ovary g. the release of seminal fluid from the male reproductive tract h. a 100-percent-effective method of preventing conception i. a highly unreliable form of birth control j. the periodic elimination of the uterine lining k. characterized by involuntary muscle contractions, release of tension, and warmth l. sexual intercourse m. sperm and egg cannot meet because a section of oviduct is missing n. cutting and tying of vasa deferentia

Q: douching Choose the one most appropriate answer for each. a. the production and secretion of milk b. sloughing off of endometrium stops permanently c. induced dislodging and removal of an embryo or fetus from the uterus d. an abortion that occurs spontaneously e. the burrowing of the blastocyst into the uterine lining f. the release of an egg from the ovary g. the release of seminal fluid from the male reproductive tract h. a 100-percent-effective method of preventing conception i. a highly unreliable form of birth control j. the periodic elimination of the uterine lining k. characterized by involuntary muscle contractions, release of tension, and warmth l. sexual intercourse m. sperm and egg cannot meet because a section of oviduct is missing n. cutting and tying of vasa deferentia

Q: coitus Choose the one most appropriate answer for each. a. the production and secretion of milk b. sloughing off of endometrium stops permanently c. induced dislodging and removal of an embryo or fetus from the uterus d. an abortion that occurs spontaneously e. the burrowing of the blastocyst into the uterine lining f. the release of an egg from the ovary g. the release of seminal fluid from the male reproductive tract h. a 100-percent-effective method of preventing conception i. a highly unreliable form of birth control j. the periodic elimination of the uterine lining k. characterized by involuntary muscle contractions, release of tension, and warmth l. sexual intercourse m. sperm and egg cannot meet because a section of oviduct is missing n. cutting and tying of vasa deferentia

Q: abstinence Choose the one most appropriate answer for each. a. the production and secretion of milk b. sloughing off of endometrium stops permanently c. induced dislodging and removal of an embryo or fetus from the uterus d. an abortion that occurs spontaneously e. the burrowing of the blastocyst into the uterine lining f. the release of an egg from the ovary g. the release of seminal fluid from the male reproductive tract h. a 100-percent-effective method of preventing conception i. a highly unreliable form of birth control j. the periodic elimination of the uterine lining k. characterized by involuntary muscle contractions, release of tension, and warmth l. sexual intercourse m. sperm and egg cannot meet because a section of oviduct is missing n. cutting and tying of vasa deferentia

Q: abortion Choose the one most appropriate answer for each. a. the production and secretion of milk b. sloughing off of endometrium stops permanently c. induced dislodging and removal of an embryo or fetus from the uterus d. an abortion that occurs spontaneously e. the burrowing of the blastocyst into the uterine lining f. the release of an egg from the ovary g. the release of seminal fluid from the male reproductive tract h. a 100-percent-effective method of preventing conception i. a highly unreliable form of birth control j. the periodic elimination of the uterine lining k. characterized by involuntary muscle contractions, release of tension, and warmth l. sexual intercourse m. sperm and egg cannot meet because a section of oviduct is missing n. cutting and tying of vasa deferentia

Q: All EXCEPT which of the following is true about chlamydia? a. It is the most common bacterial STD. b. It can be passed on from mother to child. c. Most infected males are undiagnosed because they have no symptoms. d. It can be treated with antibiotics. e. Untreated males risk infertility.

Q: Which of the following statements is true regarding HPV infection? a. There are around 6 million new cases in the US per year. b. Some strains cause genital warts. c. Some strains cause cervical cancer. d. A vaccine can prevent HPV infection. e. All of these are true.

Q: The disease in the above photograph is caused by a. syphilis. b. gonorrhea. c. chlamydia. d. all of these. e. none of these.

Q: Which of the following is the least successful method of birth control? a. early withdrawal b. a condom alone c. a spermicidal jelly or foam alone d. douching e. the Pill

Q: Which of the following is(are) among the most effective contraceptive approaches? a. abstinence b. tubal ligation c. vasectomy d. hormonal implant e. all of these

Q: Which of the following is the most effective in protecting against sexually transmitted diseases? a. condoms b. the Pill c. douching d. an IUD e. the rhythm method

Q: Fertilization in mammals normally occurs in the a. ovary. b. uterus. c. vagina. d. oviduct. e. follicle.

Q: Male orgasm is necessary for a. ejaculation of semen. b. pregnancy. c. erection. d. sexual arousal. e. all of these.

Q: During orgasm, which of the following stimulate a feeling of pleasure? a. LH b. endorphins c. testosterone d. oxytocin e. all of these

Q: During menopause: a. estrogen levels rise. b. menstruation ceases. c. many ova are released. d. women experience cold flashes. e. all of these are correct.

Q: Which of the following is not a symptom of premenstrual syndrome? a. tender breasts. b. headaches. c. water retention. d. irritability. e. all of these.

Q: Which of the following events occur(s) during the follicular phase of the menstrual cycle? a. An ovarian follicle enlarges. b. A zona pellucida forms around the oocyte. c. An oocyte completes meiosis I. d. Estrogen levels increase. e. All of these occur.

Q: Break down of the corpus luteum coincides with a ____ levels if pregnancy does NOT occur. a. decline in chorionic gonadotropin b. decline in LH c. surge in progesterone d. spike in LH e. spike in extrogen

Q: Menstrual flow results in the discharge of a. the follicle. b. the corpus luteum. c. the endometrial lining. d. surface cells from the vagina. e. blood from the blood vessels on the outer surface of the uterus.

Q: Use the figure above showing cyclic events in a human ovary to answer the following questions. A structure that thickens the uterine endometrial lining in preparation for pregnancy is indicated by a. A. b. B. c. C. d. D. e. E.

Q: Use the figure above showing cyclic events in a human ovary to answer the following questions. An ovarian follicle is indicated by a. A. b. B. c. C. d. D. e. E.

Q: Use the figure above showing cyclic events in a human ovary to answer the following questions. Ovulation is indicated by a. A. b. B. c. C. d. D. e. E.

Q: Which of the following is a phase of the menstrual cycle? a. follicular phase b. luteal phase c. ovulation d. all of these e. none of these

Q: The cervix is part of the a. labium minor. b. ovary. c. uterus. d. oviduct. e. vagina.

Q: The opening of which of the following is covered with ciliated, fingerlike projections that produce a sweeping action? a. ovary b. uterus c. vagina d. oviduct e. follicle

Q: Use the figure above to answer the following questions. The letter "E" above represents a. uterus. b. ovary. c. vagina. d. urinary bladder. e. pelvic girdle.

Q: Use the figure above to answer the following questions. The letter "C" above represents a. uterus. b. ovary. c. vagina. d. urinary bladder. e. pelvic girdle.

Q: Which of the following structures is NOT found in mature sperm? a. nucleus b. acrosome with enzymes c. mitochondria d. microtubules in the tail e. ribosomes

Q: The release of testosterone requires a. GnRH. b. luteinizing hormone. c. Sertoli cells. d. GnRH and luteinizing hormone. e. GnRH, luteinizing hormone, and Sertoli cells.

Q: Testosterone a. stimulates spermatogenesis. b. promotes the normal development and maintenance of sexual behavior. c. is responsible for the development of male secondary sexual characteristics. d. is responsible for the development of the male genitalia. e. does all of these.

Q: Use the figure above showing spermatogenesis to answer the following questions. Mature sperm is(are) indicated by a. B. b. C. c. D. d. E. e. none of these.

Q: Use the figure above showing spermatogenesis to answer the following questions. Diploid stage(s) is(are) indicated by a. A. b. B. c. C. d. D. e. B, C, and D.

Q: All EXCEPT which of the following hormones are in some way responsible for the production of sperm? a. luteinizing hormone b. follicle-stimulating hormone c. gonadotropin-releasing hormone d. testosterone e. human chorionic gonadotropin

Q: Which of the following cells are diploid? a. spermatids b. primary spermatocytes c. secondary spermatocytes d. spermatogonia e. both primary spermatocytes and spermatogonia

Q: Which of the following is the last structure that a sperm travels through as it leaves the body? a. ureter b. urethra c. vas deferens d. ejaculatory duct e. epididymis

Q: Which of the following is the site where mature sperm are stored? a. ureter b. urethra c. vas deferens d. bulbourethral gland e. epididymis

Q: Semen components are produced by a. the prostate gland. b. the seminal vesicles. c. the testes. d. the urinary bladder. e. all except "the urinary bladder."

Q: Sperm are produced in the a. testes. b. vas deferens. c. epididymis. d. prostate gland. e. penis.

Q: Which of the following is NOT an advantage of asexual reproduction? a. Asexual reproduction is faster than sexual reproduction. b. Individual organisms do not have to seek mates. c. Asexual reproduction promotes variation. d. Asexual reproduction is less energetically costly than sexual reproduction. e. In stable environments the offspring are as well adapted as the parents.

Q: The organism shown above is using which of the following types of reproduction? a. asexual budding b. sexual production of eggs c. hermaphroditic co-fertilization d. a combination of all three e. none of these

Q: The organism shown above is using which of the following types of reproduction? a. asexual budding b. sexual production of eggs c. hermaphroditic co-fertilization d. a combination of all three e. none of these

Q: What are the downsides of sweat as a cooling mechanism?

Q: Why is high blood pressure damaging to the kidneys?

Q: Chart the path of urine from the blood to the outside of the body.

Q: Provide some of the adaptations that allowed animals to adapt to life on dry land?

Q: Long-term exposure to cold can alter metabolism and encourage __________ in which brown adipose tissue produces heat.

Q: __________ such as reptiles control core temperature mainly by behavior.

Q: Kidney __________ are small, tubular structures that interact with nearby capillaries to form urine.

Q: Birds and reptiles save water by eliminating __________ rich wastes as uric acid crystals.

Q: Cartilaginous fishes retain __________ in their body, so they do not lose or gain water by osmosis.

Q: In insects and spiders, __________ take up fluid, uric acid, and solutes from the blood and deliver them to the gut.

Q: In flatworms, the action of ciliated __________ draws interstitial fluid into a system of tubes that delivers it to the body surface.

Q: In freshwater sponges and other simple freshwater animals, water flows into the body by __________.

Q: Maintaining the volume and composition of extracellular fluid is an essential aspect of __________.

Q: __________ and __________ fluid are the main components of extracellular fluid.

Q: Respond to the following statements in reference to the four regions of a nephron listed below. a. Bowman's capsule b. proximal tubule c. descending portion of loop of Henle d. distal tubule The glomerular capillaries are intimately associated with this structure.

Q: Respond to the following statements in reference to the four regions of a nephron listed below. a. Bowman's capsule b. proximal tubule c. descending portion of loop of Henle d. distal tubule Permeability to water is regulated by antidiuretic hormone in this structure.

Q: Respond to the following statements in reference to the four regions of a nephron listed below. a. Bowman's capsule b. proximal tubule c. descending portion of loop of Henle d. distal tubule This region of the tubule is impermeable to sodium exit.

Q: Respond to the following statements in reference to the four regions of a nephron listed below. a. Bowman's capsule b. proximal tubule c. descending portion of loop of Henle d. distal tubule Filtration of the blood occurs in association with this structure.

Q: Respond to the following statements in reference to the four regions of a nephron listed below. a. Bowman's capsule b. proximal tubule c. descending portion of loop of Henle d. distal tubule Sodium ions are actively transported out from this region.

Q: tubular reabsorption Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: radiation Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: heterothermic Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: hypothermia Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: hemodialysis Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: glomerular filtration Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: evaporation Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: ectothermic Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: cold response Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: convection Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: conduction Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: ADH Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: tubular secretion Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: aldosterone Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: nephron Choose the one most appropriate answer for each. a. do not maintain the same body temperature at all times; are capable of internal heat production b. heat energy is released to the air when liquid water converts to gaseous form c. bulk flow of protein-free plasma from capillaries into Bowman's capsule d. animals with more or less constant body temperature e. emission of heat from body surface when environmental temperature is lower than the body temperature f. movement of ions from peritubular capillaries into nephron tubules g. loss of too much body heat h. heat next to the body's surface undergoes mass transport by air or water currents i. active and passive transport of solutes from peritubular capillaries into the glomerular capillaries j. a long, slender, tubular unit in the vertebrate kidney that forms urine k. body temperatures rise and fall with environmental changes l. secreted by adrenal glands; influences sodium reabsorption m. passive transport of water; active and passive transport of solutes out of the nephron into peritubular capillaries n. heat energy is transferred from high to low temperature regions due to collisions between adjacent molecules o. released from the posterior lobe of the pituitary in response to hypothalamic signals p. toxic substances are extracted from blood circulating in cellophane tubes suspended in a warm-water bath q. erection of hairs and feathers by smooth muscles in the skin

Q: Which of the following is NOT part of the initial response to cold temperature? a. vasodilation of peripheral blood vessels b. shivering c. muscle contractions d. shunting of the blood to the core regions of the body e. increased metabolism

Q: The primary thermostat of the body is located in the a. heart. b. hypothalamus. c. medulla oblongata. d. cerebellum. e. thyroid gland.

Q: Endothermic animals a. use up more energy than ectotherms. b. are more active at a wider range of temperatures than ectotherms. c. have a higher metabolic rate than ectotherms. d. may have feathers to reduce heat loss. e. fit all of these descriptions.

Q: Which of the following processes is able to move heat away from the body and is used by humans? a. convection b. evaporation c. conduction d. radiation e. collection

Q: Heat loss resulting from conversion of a liquid to a gas is called a. conduction. b. radiation. c. convection. d. metabolism. e. evaporation.