Two factors that drive natural selection are listed below.

1. percentage of young that survive
2. ability to produce offspring

which statement is true about the two factors?

factor 1 causes genetic variation and factor 2 causes differential reproductive success.
factor 1 causes differential reproductive success and factor 2 causes genetic variation.
both factors cause differential reproductive success.
both factors cause genetic variation.

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

the answer is d. none of the above

what are the options

explanation:

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.