Which statement is true of natural populations?

Viable populations exhibit little, if any, genetic variation.

Populations are all uniform in size.

Populations are all the individuals of a species living in a defined area.

Population is a collection of individuals of a species living in a defined area

Explanation:

Population:This is a collection of individuals of the same species occupying the same space and able to interbreed freely with one another when individuals of different sexes are brought together.

A species of animals may comprise a single cohesive population or may contain many geographical distinct populations.

Example:A population of Agama lizards in a Campus located in China.The whole human race, Homo sapiens comprising the black, Mongolian,red and white is a population.A population of Cercopithecus erythrogaster (Monkeys).

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles