Question

question 18(multiple choice worth 3 points)
(02.05 mc)
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.

Explanation:

Differential reproductive success refers to the idea that some individuals are more successful at surviving and reproducing than others. The percentage of young that survive (Factor 1) directly impacts how many individuals are able to reproduce, thus causing differential reproductive success. Genetic variation is the presence of differences in sequences of genes between individual organisms of a species. The ability to produce offspring (Factor 2) can introduce new genetic combinations (through processes like recombination during sexual reproduction) which causes genetic variation.

Answer:

Factor 1 causes differential reproductive success and factor 2 causes genetic variation.