When looking at a slide you see what appears to be open spaces with small cells in it, this all is surrounded by layers of connective tissue. what type of tissue is being observed?

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?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water