Question

heterotrophs, such as deer and wolves, must consume other organisms to obtain nourishment and energy, occupying various trophic levels within ecosystems. chemotrophs, adapted to extreme environments like deep - sea vents, derive their sustenance from chemical compounds. where do chemotrophs get their energy and matter? sunlight they consume other organisms chemical compounds

Explanation:

The text states that chemotrophs "derive their sustenance from chemical compounds." This directly answers the question about where chemotrophs get their energy and matter.

Answer:

chemical compounds