Eukaryotes have how many different RNA polymerases?
What will be an ideal response?
3
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A scientific theory ____
a. is widely accepted and supported by several evidences b. is widely accepted but not necessarily supported by several evidences c. is sometimes accepted and supported by several evidences d. is sometimes accepted and not necessarily supported by several evidences e. is always a "truth"
Which of the following indicates a poorly designed study?
A) a control group B) variables were controlled C) bias D) follow-up studies
The movement of water molecules during osmosis is due to
A. diffusion. B. active transport. C. pinocytosis. D. endocytosis.
Acanthamoeba and (Entamoeba/Naegleria/Plasmodium) cause rare and usually fatal infections of the brain.
Fill in the blank(s) with the appropriate word(s).