Four of the five answers listed below are molecules that participate in muscle contraction. Select the
exception.
a. sarcolemma
b. ATP
c. calcium
d. actin
e. myosin
A
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This primate is a Philippine tarsier, which has a tail longer than its body, and a brain about the same size of one of its eyes. Tarsiers have the largest eyes relative to their body size of any mammal, and it uses them to hunt the insects, lizards, and small birds that make up its diet. How is the Philippine tarsier classified?
a. Dermopterans
b. Strepsirrhines
c. Haplorhines
d. Catarrhines
Explain how sexual reproduction leads to genetic variation. What is the evolutionary significance of this variation?
What will be an ideal response?
Clostridium tetani, the bacterium that causes tetanus, can survive in soil for up to 40 years. Forming which of the following structures would support its longevity?
A. a glycocalyx B. a pilus C. a cell wall D. an endospore E. a cell membrane
The thymus plays an important role in ____
a. secretion of thyroxine b. immune function c. adrenal function d. production of testosterone e. sleep-wake cycles