The genetic variation represented by plants and animals is known as ________.

A) biodiversity

B) conservation

C) evolutionary heterosis

D) contract digression

E) None of the answers listed is correct.

At which levels do most scientists examine genetic diversity?

A) species and kingdom

B) female and male

C) interspecific and intraspecific

D) species A and species B

E) higher and lower forms

The Food and Agriculture Organization (FAO) estimated that since 1900, ________ percent of the genetic diversity in agricultural crops has been lost.

A) 20

B) 30

C) 50

D) 75

E) 90