Question

Tropical regions show greatest level of species richness becaus
A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.
B. Tropical environments are more seasonal.
C. More solar energy is available in tropics.
D. Constant environments promote niche specialization.
E. Tropical environments are constant and predictable.
Choase the correct answer from the options given below:

• A. A, C, D and E only
• B. A and B only
• C. A, B and E only
• D. A, B and D only

Answer 1

The Correct Option is A

Tropical regions have remained relatively undisturbed over millions of years, which has provided more time for species to evolve and diversify. The constant availability of solar energy in these regions supports a high rate of photosynthesis, which in turn supports diverse ecosystems. Furthermore, the predictable and constant environmental conditions in the tropics allow species to specialize in particular niches, enhancing species richness. Seasonal variability is less pronounced in the tropics compared to temperate zones, making environments more stable for long-term survival.

Hence, the combination of all these factors (A, C, D, and E) leads to greater species richness.