An amoeba eats some food. what organelles will store and digest it?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

How does the study of genetic disorders such as pku biologists understand normal alleles?

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.