Competition shapes communities because there are usually limited 

A. species.
B. resources.
C. interactions.
D. nutrients.


B. resources.

Biology & Microbiology

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Transcriptional regulation in prokaryotes is rapidly turned on or off in response to environmental changes and involves both positive and negative regulators

A. true B. false

Biology & Microbiology

Monosaccharides have a carbon to hydrogen to oxygen ratio of

a. 1:1:1. b. 1:1:2. c. 2:1:1. d. 1:2:1. e. 1:2:2

Biology & Microbiology

What type of bond typically links two different proteins together?

a. a hydrogen bond b. a disulfide bond c. a bond resulting from a dehydration synthesis reaction d. none of the above

Biology & Microbiology

Cells are small because cell size depends on environmental temperature. The higher the temperature, the smaller the cell.

a. true b. false

Biology & Microbiology