| Consider the following statements regarding the ecological pyramid. |
| 1. Generally, the biomass will decrease from equator to the pole. |
| 2. The number pyramid can be either erect or inverted. |
| Which of the statement(s) given above is/are correct? |
A) Only 1
B) Only 2
C) Both 1 and 2
D) Neither 1 nor 2
Correct Answer: C
Solution :
[c] Ecosystems differ in the amount of biomass or number of organisms present at the equator and the intensity decreases as we move toward the poles. There is pyramid of numbers, which represent the number of organisms in each trophic level. They may be erect (grassland ecosystem), inverted (parasitic ecosystem) or dumb-bell shaped (forest ecosystem).
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