Where is dna located in eukaryotic cells? cytoplasm cell membrane nucleus cell wall

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

What causes the phospholipids to organize themselves the way they do

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?