The breakdown of nucleotides produces which the molecules?
a. Creatine phosphate
b. Ammonia
c. Urea
d. uric acid
Ans: d. uric acid
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A P. bursaria cell that has lost its zoochlorellae is said to be aposymbiotic
It might be able to replenish its contingent of zoochlorellae by ingesting them without subsequently digesting them. Which of the following situations would be most favorable to the reestablishment of resident zoochlorellae, assuming compatible Chlorella are present in P. bursaria's habitat? A) abundant light, no bacterial prey B) abundant light, abundant bacterial prey C) no light, no bacterial prey D) no light, abundant bacterial prey
The most inclusive level of organization listed
here is a(n) a. heart. b. carbon atom. c. DNA. d. a zebra. e. red blood cell.
Give some examples showing how cells respond to signals. How are signals terminated? What will be an ideal response?
An albatross spending its life hovering over the ocean provides an extreme example of __________, the process by which animals control solute concentrations and balance water gain and loss.
a. osmoregulation b. hydration c. evaporation d. osmosis e. excretion