Correct answer: (c) 2 and 3
Explanation
- A
1 and 4 only
1 and 4 only. Ferns and mushrooms usually want soil or wood; lichens and mosses colonise bare rock.
- B
2 only
2 only. Mosses also live on rock and bark.
- C
2 and 3
2 and 3. Lichen and moss on rock, bark, walls — little or no soil. Fern and mushroom generally need a substrate of soil or dead wood.
- D
1, 3 and 4
1, 3 and 4. Fern and mushroom are the misses.
Summary. Official key is (c) 2 and 3. Lichens and mosses pioneer bare surfaces. Ferns and mushrooms typically need soil or decaying organic matter.
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