During dna replication a. one template strand must be degraded to allow the other strand to be copied. b. the template strands must separate so that both can be copied. c. the template strands come back together after the passage of the replication fork. d. origins of replication always give rise to single replication forks.

What adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

Ais a group of individuals of the same that exist together in the same place at the same time

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?