fixation is when carbon dioxide from the atmosphere is "fixed" in the plant cells; using the carbon to make .

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 cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Why is it to call the calvin cycle the light independent reactions vs the dark reactions