Multicellular animals with pressurized circulatory systems use a three-step process to isolate and eliminate wastes. Arrange these steps in order from earliest to latest
A. filtration; reabsorption; secretion
B. secretion; filtration; reabsorption
C. filtration; secretion; reabsorption
D. reabsorption; filtration, secretion
E. secretion; reabsorption; filtration
A
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What process delivers organic nutrients to abyssal plains and trenches near continental shelves?
a. Decomposition b. Biological magnification c. Turbidity currents d. Marine snow
You cross a true-breeding red-flowered snapdragon with a true-breeding white-flowered snapdragon. All of the F1 are pink. What can you say about the alleles for the parental traits?
A. Both red and white are recessive. B. Red and white show incomplete dominance. C. Pink is dominant, whereas red and white are recessive. D. Red is dominant.
To test for the presence of starch, iodine can be used. A positive reaction results in a black color. A dialysis bag filled with starch solution and secured on both ends is placed in iodine solution. After 30 minutes the dialysis bag appears black. Based on this information, what most accurately describes what happened?
A. Over time, both iodine and starch are equally distributed throughout the two solutions. B. Due to its size and polarity, starch was able to exit the dialysis bag and interact with the iodine solution. C. Due to its size and polarity, iodine was able to enter the dialysis bag and interact with starch.
Which of the following is an example of sexually antagonistic selection?
a. Male fights over females raise the risk of female injury. b. Male red deer with high lifetime reproductive fitness have daughters with low lifetime reproductive fitness. c. Female birds engage in extra-pair copulations with males other than the one providing the main brood care. d. Red coloration in sticklebacks is an honest signal of male parasite re-sistance. e. A, B, and C.