Why do animals have so many different enzymes to digest food?

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution

While washing her hair olivia noticed that she was losing a lot of hair she visited a clinic and the physician reassured her that her hair would grow back how do you think olivias hair will grow back

Which sentences describe the logistic growth model? there are three different phases of the s-shaped curve. at first, growth is exponential because individuals are few and resources are plenty. this growth model occurs in a situation where resources are plenty and individuals are few to consume the resources. population growth decreases as resources become limited. when a population size reaches the carrying capacity of its environment, the population growth slows down or stops completely. the model looks like a j-curve.