When you first get into the swimming pool the water feels rather cool; but after swimming for a while the water feels fine. a friend asks you how the water is and you tell her the "water's great". she jumps in and then accuses you of lying because the water is freezing. you really were not lying. it is just that you experienced?

What does homeostasis means in biology?

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.