The most effective molecule for nitrogenous waste disposal in desert animals would be __________

a. ammonia because it uses less energy to make than uric acid or urea
b. urea because it is less toxic than uric acid
c. uric acid because it takes less energy to make than urea
d. uric acid because it requires very little water for excretion
e. ammonia because it is the most soluble of all the nitrogen-containing metabolic waste products


Ans: d. uric acid because it requires very little water for excretion

Biology & Microbiology

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The process of binary fission leads to the production of how many cells?

a. 1 b. 2 c. 3 d.4

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About a day after fertilization, the zygote undergoes ________, which is a rapid series of cell divisions

Fill in the blank(s) with correct word

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Which receptor in plant cells is activated by red light?

a. rhodopsin b. diacylglycerol c. acetylcholine d. phytochrome e. cryptochrome

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