Sexual reproduction contributes to genetic diversity by allowing

a. unmixed genes from two parents to be passed to offspring.

b. genes from two parents to be mixed and remixed before being passed to offspring.

c. a single parent to pass along a complete set of unmixed genes to offspring.

d. genes from a single parent to be mixed and remixed before being passed to offspring.

Sexual Reproduction contributes to genetic diversity by allowing the chromosomes of both parents to mix together into the offspring making them a combination of both of the parents.

Explanation:

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.