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Which sentence(s) belong to the characteristics of the community structure?
(A) . Phenology is the scientific study of climate change seasonal variations.
(B) . Physiognomy means the appearance of a less dominant species in an area
(C) . Dominance is the number of individuals of any species per sampling unit studied
(D) . Stratification is a qualitative characteristic of community structure
Choose the correct answer from the options given below:
EXPLANATION
Ecological Succession, Population/Community D
- Statement (A) is Correct: Phenology is the study of periodic biological life-cycle events (flowering, leafing, migration) in response to seasonal climatic variations.
- Statement (D) is Correct: Stratification represents the vertical and horizontal structural layering (canopy, understory, ground layer) of plant populations in a community.
- Why (B) and (C) are Incorrect: Physiognomy (B) refers to the general outward architecture and dominant growth forms of a community, not less dominant species. Dominance (C) refers to the ecological control and biomass influence exerted by species, whereas individuals per sampling unit defines numerical density/abundance.
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