Common causes of chronic insomnia include all but this factor:

-May occur as a result of stress
-May occur as a result of poor sleep habits
-may occur as a result of not eating, causing hunger to keep you up
-May last for years


may occur as a result of not eating, causing hunger to keep you up

Biology & Microbiology

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Color vision in vertebrates is made possible by:

A. cone cells. B. rod cells. C. amicrine cells. D. ganglion cells.

Biology & Microbiology

You are studying an enzyme-catalyzed reaction that induces a particular cellular activity in the lab.  If you wanted to slow down that particular cellular activity by controlling the enzyme, what could you do?    

A.  Decrease the temperature of the incubator where the cells are growing B.  Increase the pH of the media the cells are growing in to the optimum pH C.  Add cofactors to the media the cells are growing in D.  Add an allosteric activator to the cells

Biology & Microbiology

Cyanobacteria

A. are a form of algae. B. are prokaryotes. C. use hydrogen sulfide as an electron source. D. are eukaryotes.

Biology & Microbiology

what is Reverse transcriptase?

What will be an ideal response?

Biology & Microbiology