Structurally, a sarcomere is

A) the region between two thick filaments.
B) the region between two Z lines.
C) an array of Z units.
D) the region between a thick filament and the next thin filament.


Answer: B

Biology & Microbiology

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Abiotic interactions are

A. between organisms. B. between organisms and the environment. C. usually mutually costly. D. most important in tropical ecosystems. E. rare.

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A situation in which the birth rate equals the death rate is called:

a. an intrinsic limiting factor b. exponential growth c. saturation d. zero population growth e. geometric growth

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Four of the five answers listed below are pure-breeding. Select the exception

a. AA BB b. Aa BB c. AA bb d. aa BB e. aa bb

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Which of the following are classes of nutrients?

A) carbohydrates B) dietary cholesterol C) lipids D) proteins

Biology & Microbiology