How many different classes of neurons are

involved in most nervous systems?



a. 1
b. 2
c. 3
d. 4
e. 5


C

Biology & Microbiology

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How many coding codons are there?

a. 4 b. 20 c. 30 d. 60 e. 64

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In the transcription of DNA, remodeling proteins push the histone portion of the nucleosome aside so that transcription may begin.

Answer the following statement true (T) or false (F)

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All the following are plant adaptations to low temperatures, except

A) shedding leaves at the onset of cold weather. B) production of antifreeze molecules. C) a shifting of Topt. D) increased photosynthetic rate to heat leaves.

Biology & Microbiology

The regulation of an enzyme's activity by means of a molecule binding to a site on the enzyme other than its active site is called ________

Fill in the blank(s) with correct word

Biology & Microbiology