a boy jumped into a lake causing his body temperature to decrease. as a result his muscles blood vessels and nervous system work together to restor his body temperature this is an example of what process

Specialized cells which perform a particular function form : organisms organs tissues

Which layer will become saturated first when rain falls?

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?