Dairy products, green leafy vegetables, tofu made with calcium sulfate, sardines canned with the bones, and calcium-fortified foods are good sources of calcium. complete the statement about factors that affect calcium absorption. calcium absorption is enhanced a. when the body’s need for calcium is high

b. as you get older

c. when you consume more than 800 mg of calcium at one time

d. by consuming high-oxalate foods

What happened to rosalind franklin in 1956?

In what for do plants utilize nitrogen? why do they need nitrogen?

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?