The two basic structural forms taken by most viruses are ____
a. polyhedral or enveloped
b. helical or enveloped
c. helical or polyhedral
d. cylindrical or polyhedral
e. cylindrical or enveloped
ANSWER: c
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What evolutionary changes in stems lead to an increase in a plant’s capacity for producing energy for
growth?
What will be an ideal response?Reciprocal innervation of reflexes between antagonistic muscle pairs
a. is the usual basis of coordinated contractions. b. is the means by which rods prevent cones from being stimulated. c. refers to the lens adjustments that bring about precise focusing onto the retina. d. explains the mechanism for the operation of the calcium pump. e. is a protective function only.
MRI is a type of imaging technique that can detect tumor consistency
Indicate whether the statement is true or false
Which feature unites paramecia, malarial parasites, and dinoflagellates into a single group?
A. The type of ribosomes B. The possession of alveoli C. The presence of a nucleus D. A parasitic life style E. The use of cilia