♻️ap environmental science review

Extinct (EX)

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Extinct refers to a species that no longer exists anywhere on Earth. It means there are no living individuals left, and the species has completely disappeared from the planet.

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