The nature of the biotic community largely depends on: (1) Biotic components (2) Abiotic components. Select the correct answer using the code given below.
- (a)1 only
- (b)2 only
- (c)Both 1 and 2
- (d)Neither 1 nor 2
Correct — B, 2 only. The passage makes the point that what a biotic community looks like is largely governed by the physical, non-living conditions around it — climate, water, soil and the like — that is, the abiotic components. Those surroundings decide which organisms can survive and thrive there, so the answer keyed to the passage is the abiotic components alone.
- (a)1 only — The passage keys the community's character to its physical (abiotic) surroundings, not to the biotic components, so 'biotic components only' does not match the passage's claim.
- (c)Both 1 and 2 — This is the general-ecology trap: while both do interact in reality, the passage stresses the abiotic environment alone as what largely shapes the community, so 'both' claims more than the passage keys.
- (d)Neither 1 nor 2 — The passage does name a governing cause — the abiotic components — so 'neither' contradicts what the passage states.
A reading-comprehension item asking what chiefly shapes a biotic community, resting on the passage's stress on the physical (abiotic) environment.
No directly related past PYQ was found.
- practice — not a real PYQ
The type of natural vegetation found in an area is chiefly determined by its:
- (a)animal life
- (b)physical environment such as climate and soil
- (c)human population
- (d)number of species names
Answer(b) physical environment such as climate and soil — abiotic conditions set what can grow.
- practice — not a real PYQ
Which factor most directly limits which organisms can live in a desert?
- (a)the colour of the organisms
- (b)abiotic conditions like water and temperature
- (c)the number of species names
- (d)the weekly rainfall forecast
Answer(b) abiotic conditions like water and temperature — scarce water and high heat restrict life.