Which of the following is/are advantages of using natural polymers as biomaterials: a) often degraded by naturally occurring enzymes b) none of the above c) all of the above d) never elicit immune response manufacturing manipulation e) is never difficult because they are more complex than synthetic polymers.

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?

The term equestrian relates to which animal? bulls cows horses pigs

What pattern of migration do whales follow?