Which of the following has NOT been a basis for classification of the protozoa?
A. means of locomotion
B. genetic sequences
C. photosynthetic ability
D. habitat
E. ability to form a dormant stage
Answer: D
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The greatest drop in blood pressure occurs in the
a. arteries. b. arterioles. c. capillaries. d. venules. e. veins.
All ciliates have cilia at some point during their life cycle, and some use the cilia not just for movement but also to direct food as well
Indicate whether the statement is true or false.
The function of the catabolite activator protein (CAP) is to:
a. increase the affinity of the promoter region for RNA polymerase. b. decrease RNA polymerase activity. c. deactivate RNA polymerase after binding to AMP. d. bind to and activate RNA polymerase directly. e. block RNA polymerase from accessing the DNA template.
Amino acid sequences of the heme protein ____________have been studied in order to determine common ancestry.
a. cytochrome a b. cytochrome c c. hemoglobin d. hemoglobin A1c