Which of the following does not contain sugars?
A.) glycoproteins
B.) steroids
C.) glycolipids
D.) cellulose
E.) nucleotides
Ans: B.) steroids
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The rate differences between molecular clocks are due largely to differences in _____. Thus, the extreme case of a fast molecular clock is derived from a _____
A. the intensity of selection; histone proteins B. the size of the molecule; pseudogenes C. the intensity of selection; pseudogene D. the size of the molecule; histone proteins E. none of these
What is the function of an amacrine cell?
a. transmit information from photoreceptors directly to the brain b. modulate the activity of other photoreceptors c. transmit information from bipolar cells to the ganglion cells d. modulate lateral inhibition e. transmit information from photoreceptors to bipolar cells
Tin is commonly found:
a. in coastal sediments. b. in oceanic sediments. c. dissolved in seawater. d. in manganese nodules. e. at the bottom of trenches.
What is the "psychological need" that many humans have for nature?
A) mutualism B) commensalism C) community D) biophilia