PLEASE HELPP 100 POINTS NEED ANSWER ASAP TY LUV <3 The diagram shows a cross section of a eukaryotic cell.
How do the nucleus and ribosomes work together?

a The ribosomes perform chemical reactions that supply the nucleus with needed nutrients.
b The nucleus sorts and distributes the genetic information it receives from the ribosomes.
c The ribosomes build proteins based on the genetic instructions they receive from the nucleus.
d The nucleus creates proteins and lipids that the ribosomes then transport to other organelles.

What was the land like over 500 million years ago? what was under the sea?

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 energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius