Powerful tropical storms that are characterized by wind speeds greater than 120 km/h and storm surges are called . a. tornadoes. c. hurricanes. b. thunderstorms. d. hailstorms.

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?

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above