g INTRODUCTION: Evolution is any change in the genetic composition of a population over generations. Four types of beans represent different alleles of a gene within a population. Beans were preyed upon and remaining beans were counted and allowed to reproduce for three generations. The change in frequency of bean types over generations demonstrates how natural selection drives evolution by changing allele frequencies within a population.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

the answer is