Concept:Homeostasis is the process that keeps an organism's internal environment stable.
Explanation:Despite changes outside the body, the internal environment must remain fairly constant.
Important internal conditions include body temperature, blood sugar, and water balance.
These conditions are regulated by self-adjusting mechanisms in the body.
For example, sweating helps cool the body when it becomes too hot.
This kind of self-regulating stability is called homeostasis.
Metabolism does not match this idea because it means all the chemical reactions inside the body.
Evolution is the gradual change of species over many generations.
Gametogenesis is the production of sex cells or gametes.
Thus, among the options, the term that best matches the definition is homeostasis.
Answer:D. homeostasis