What is the room total cooling load?

In the deserts of North America, you find many species of cacti which have big fleshy stems adapted for storing water. In the deserts of Africa, you find many species of euphorbs which have big fleshy stems adapted for storing water. The similarity of adaptations between these very different plants is an example of

An allele for yellow seeds is dominant to an allele for green seeds in pea plants. In a population of pea plants, 84% of the plants produce yellow seeds and 16% of the plants produce green seeds. What is the frequency of the heterozygous genotype in this population?

Which of the following is an example of warning coloration?

Some traits are favored not because they enhance survival, but because they increase the individual’s likelihood of obtaining mates. This is called

How do mountains affect climate?

In a population of guppies, some females develop a mating preference for males with orange spots while other females develop a mating preference for males with blue spots. What could occur because of this difference in mating preferences?

Which of the following is NOT a prezygotic barrier?

The driving force behind natural selection is

What is the climax (or turning point) in the play? The moment that is most suspenseful, and after which the falling action or resolution of the play begins.