Some g protein-coupled receptors are sensitve to hormones such as angiotensin ii and oxytocin, and act through compounds such as phospholipase c and ip3. (a) complete the flowchart showing the cleavage of a membrane lipid to form compounds that ultimately cause the phosphorylation of specific proteins. the abbreviations used are phosphatidylinositol 4,5-bisphosphate, pip2; protein kinase c, pkc; diacylglycerol, dag; and inositol 1 ,4,5-triphosphate, ip3; phospholipase c, plc. b)which of the compounds can be considered second messengers? 1-dag 2-pkc 3-ser 4-ip3 5-pip2 6-plc 7-ca2+ !

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

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?

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?