A substance that resists changes in pH is referred to as a(n) ________.
A. solution
B. buffer
C. base
D. acid
B. buffer
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Photosynthesis
A. is NOT dependent on chlorophyll. B. does NOT involve oxidation-reduction reactions. C. produces water and carbon dioxide. D. produces glucose and oxygen. E. None of the answers are correct.
Which of the following is a cost experienced by an individual in a promiscuous mating system?
A. An individual experiences high risk of sexually transmitted diseases and parasites. B. If a male does not have an alpha ranking, he is unlikely to mate at all. C. The male does not ensure 'genetic insurance' by mating with multiple females. D. Cuckoldry is common (where a male contributes to parental care of an offspring that he is not related to).
At high population density, __________ is favored, investing more time and energy in fewer, higher
quality offspring. Fill in the blank(s) with the appropriate word(s).
Bacteria and protozoans ____
a. can be either unicellular or multicellular organisms b. reside solely in oceans c. are multicellular organisms d. are unicellular organisms e. are precursors to cells