Diatoms, coccolithophores and silicoflagellates all belong to the domain:
a. Eukarya.
b. Eubacteria.
c. Archaea.
d. Anthophyta.
e. Protista.
A
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Members of the genus Pseudomonas
A. are aerobes that mineralize a wide variety of organic compounds. B. form cysts when starved for nutrients. C. perform anaerobic photosynthesis. D. are obligate intracellular parasites.
Winged arthropods rely solely on behavioral mechanisms for thermoregulation
Indicate whether the statement is true or false.
Why are the predator and prey growth curves out of phase? a. Because both predator and prey are responding to changes in the previousgeneration of the other population
b. Because neither population can respond instantly to changes in the otherpopulation. c. Because reproductive cycles in either population cause a delay in response tothe other population. d. All of the above.
The reduction of the second carbon in the nucleoside sugar to produce deoxyribose from ribose, requires the protein ________ as a reducing agent.
A. phosphatase B. thioredoxin C. ATP D. ribonuclease