How does an insect "hold its breath"?

A. by closing its tracheae
B. by closing its mouth
C. by closing its spiracles
D. by closing its gills
E. by closing its nostrils


C. by closing its spiracles

Biology & Microbiology

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A population’s ____ is the specific environment in which it lives

a. growth rate b. geographical range c. size d. habitat e. dynamics

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in a hypotonic solution, the cell will ________ water

Fill in the blank(s) with the appropriate word(s).

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Diurnal animals are most active at night. Indicate whether the statement is true or false

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Restriction enzymes are "restricted" in the sense that they normally work on only bacterial DNA

Indicate whether the statement is true or false

Biology & Microbiology