Which of the following is true of the structure
labeled “A”?
a. It is composed of tubulin subunits.
b. It is composed of actin subunits.
c. It is a microtubule.
d. It is an intermediate filament.
e. It is a major component of muscle cells.
Answer: a
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What is the fundamental difference between the processes of microevolution and macroevolution?
What will be an ideal response?
Match the type of circulatory system with the organism in which it is found.
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