Question

which statement best illustrates how an organism maintains homeostasis?
caterpillars undergo metamorphosis to become butterflies.
lizards bask on warm rocks when the outside temperature is cool.
chinook salmon swim upstream to spawn in the early fall.
peachens mate with peacocks with long brightly colored tails.

Explanation:

Homeostasis is the ability of an organism to maintain a stable internal environment. Lizards basking on warm rocks when it's cool is an example of a behavior to regulate body - temperature, which is a form of maintaining homeostasis. Metamorphosis is a developmental process, salmon swimming upstream is for reproduction, and peacocks mating is related to sexual selection, none of which directly relate to homeostasis.

Answer:

Lizards bask on warm rocks when the outside temperature is cool.