An influx of some pollutants, such as fertilizers and pesticides, into bodies of water can lead to artificial

a. fertilization

b. selection

c. population decline

d. eutrophication

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

What part of the brain is highlighted in the diagram below?

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates