Marine biologists are concerned that pollution from a nearby factory has affected the health of local sea urchins. Which of the following is most
likely to be the population of interest? *
A. 4 sea urchins with abnormal coloration
Q
B. All of the sea urchins in the entire ocean
C. 20 sea urchins gathered from tidal pools
D. All of the sea urchins near the plant

Which process is involved in growing crops? irrigation transportation recreation condensation

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to