The colors of peacocks and hummingbirds are the result, not of pigments, but of ridges in the surface layers of their feathers. by what physical principle do these ridges produce colors?

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

What causes the phospholipids to organize themselves the way they do

Explain the difference between incomplete dominance and codominance