Which of the following best describes the dependent variable?
the variable that responds to change.
the variable that is deliberately changed.
the variable kept constant.
the treatment in an investigation

Darius is observing a family of geese, which includes a male goose, female goose, and several goslings. when a dog approaches the geese, the male goose hisses at the dog and flaps its wings threateningly. is the behavior of the male goose an example of an adaptation?

Why do carbohydrate molecules function so well as fuel for the body?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.