🧬ap biology review

Symbiosis

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

Symbiosis is a close and long-term relationship between two different species, where at least one of the species benefits. It's like a mutually beneficial partnership where both parties gain something.

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