The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their

A. rate of photosynthesis.
B. level of activity.
C. ability to pollinate flowers.
D. rate of respiration.
E. body temperature.


D. rate of respiration.

Biology & Microbiology

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If an injection to the mouse contains live R strain Streptococcus pneumonia, _____

a. the mouse will die b. live S strain will be detected in the mouse's blood c. the mouse will live d. no live R strain will be detected in the mouse's blood e. the live R strain bacteria will develop pathogenicity

Biology & Microbiology

Neanderthals appeared how many years ago?

a. ˜800,000 b. ˜600,000 c. ˜300,000 d. ˜250,000 e. ˜100,000

Biology & Microbiology

The Y chromosome

a)is larger than the X chromosome. b)contains more genes than the X chromosome. c)is the same size as the X chromosome. d)is smaller than the X chromosome. e)is genetically identical to the X chromosome.

Biology & Microbiology

A(n) (culture/specimen/inoculum) is a sample of microorganisms introduced into a growth medium.

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

Biology & Microbiology