Is the gradual increase in the overall temperature of the earth’s atmosphere generally attributed to the greenhouse effect and caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.