Q108 · Practice questionSimple familiar1 mark
QUESTION 108
An undisturbed forest maintains broadly stable dominant vegetation over several decades, although individual trees die and are replaced. This observation is most consistent with
(A)
primary succession restarting whenever one tree dies.
(B)
a relatively stable climax community with continuing turnover.
(C)
the absence of competition between any organisms.
(D)
all nutrient cycling having ceased.
WORKED SOLUTION
1 markAnswer B
Answer
B
Working
A relatively stable climax community can remain dynamic at the level of individuals. Stability of community composition does not require births, deaths or material cycling to stop.
Marking criteria
- Select B. [1 mark]
Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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