In lichen, a chlorophyll-containing partner, _______ live together.
- Aalgae and a fungus
- Bfungus and a bacterium
- Calga and a virus
- DMore than one of the above
- ENone of the above
Show answer and explanation
Correct answer: (a) algae and a fungus
Explanation
A lichen is a symbiotic association between an alga and a fungus.
The chlorophyll-containing alga makes food by photosynthesis, while the fungus retains moisture and provides support.
This mutualism lets lichens survive harsh habitats like bare rock and tree bark.