Nitrogen is made available to legumes because of a symbiotic relationship between the plant and 

A. a virus.
B. bacteria.
C. fungi.
D. protozoa.


B. bacteria.

Biology & Microbiology

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The organism that causes malaria is

a. a pathogen. b. Plasmodium vivax. c. carried by a mosquito. d. all of the above.

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A bilingual couple can speak English and Spanish. They have a child that is also bilingual and can speak English and Spanish. Has evolution occurred?

A. No B. Yes

Biology & Microbiology

The pituitary hormone associated most directly with metabolic rate plus growth and development is

a. ACTH. b. TSH. c. FSH. d. LH. e. ADH.

Biology & Microbiology

Microbial death occurs when there is

A. no reproduction. B. no movement. C. a decrease in size. D. a change in appearance. E. All of the choices occur.

Biology & Microbiology