What is one effect of immigration on a population living in an ecosystem?

A) the competition for resources will increase.

B) more animals will leave the ecosystem.

C) biodiversity will decrease.

D) the population will decrease.

Air pollution is only caused by human activity, select the best answer from the choices provided ot of true or false

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only