Multiple choice

______ are formed by a symbiotic relationship between algae and fungi.

  1. Saprophytes

  2. Parasites

  3. Lichens

  4. Mosses

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lichens are composite organisms resulting from a symbiotic relationship between a fungus and a photosynthetic partner, usually an alga. The fungus provides a protected environment and minerals, while the alga provides food through photosynthesis. This mutualism allows them to survive in harsh environments.