What are enzymes called that control the activities of other proteins by phosphorylating them?
A) ATPases
B) chromatin
C) phosphatases
D) cyclins
E) kinases
E
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Organisms that fix nitrogen are called:
A. fertilizers B. nitrophiles C. diazotrophs D. nodules E. none of the options listed
Crab spiders can be found sitting on top of flowers in fields. They are easily visible on warm
sunny days. This is an example of an organism’s __________.
a. microhabitat b. macrohabitat c. niche d. life zone
The ends of linear chromosomes will become shorter on the _________ strands because the _____ ends can not be extended.
a) leading; 5' b) leading; 3' c) lagging; 5' d) lagging, 3'
Which of the following is an example of macroevolution?
a. The origin of eyes capable of producing a focused image in both invertebrates and vertebrates= b. The spread of antibiotic resistance within a population of bacteria c. Decrease in the prevalence of the sickle-cell allele in populations outside the range of mosquitoes that transmit malaria d. Selection against a form of albinism caused by a genetic change at a single locus e. All of the listed responses are examples of macroevolution.