Fast-twitch muscle fibers are powered primarily by ATP from which source?

1.electron transfer chain
2.acetyl co-A
3.lactate fermentation
4.ethanol fermentation


3

Biology & Microbiology

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At the center of the iris is the _________

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

Biology & Microbiology

In the final stage of SCNT, a(n) _____ is used to cause the foreign cell to fuse with, and empty its contents into, the

cytoplasm of the egg.

a. fine point needle b. virus c. micropipette d. electric current e. calcium phosphate

Biology & Microbiology

Breathing rates are automatically increased when _____ levels are _____

a. oxygen; high b. carbon dioxide; high

c. oxygen; low d. carbon dioxide; low e. ATP; low

Biology & Microbiology

Ferns, roots, and fronds grow from __________. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology