23
QuizMultiple Choice

Environmental Changes — Test

Question 23 • TPS EdX Biology

An ecosystem has experienced a flood. Which type of plants would you expect to see growing first after the flood?

Answer
A
pine and oak trees
B
small annual plants
C
shrubs
D
lichen

Explanation

After a flood, bare or disturbed ground is often colonized first by fast-growing pioneer plants. Small annual plants can sprout and complete their life cycles quickly, before longer-lived shrubs and trees establish. Pine and oak trees take much longer to grow, while lichens typically colonize bare rock or surfaces with little soil.

AI-written and checked against the verified answer.

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