Which of the following is not a primary coloniser?
Correct answer: B. Viruses
- A. Blue-green algae
- B. Viruses
- C. Lichens
- D. Mosses
Explanation
Viruses are not generally primary colonisers because they depend on living host cells for replication. Blue-green algae, lichens and mosses can establish directly as early colonisers of suitable bare habitats.
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