Geochemistry is the study of which of the following? a. habitats of organisms

b. effects of internal processes on Earth's surface

c. earth's composition and processes d. how the moon and stars affect people's lives
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How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

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?