WAEC Biology 2026 Question 9

Question 9

Feeding Relationships and Energy Flow

The diagram below is an illustration of an ecological pyramid.
4th level: 10
3rd level: 1,000
2nd level: 8 000
1st level: 20
Organisms that would occupy the first level are

Diagram for this question
  1. A.grasses
  2. B.trees
  3. C.herbs
  4. D.weeds
Show the answer and explanation

Answer: B (trees)

Explanation

Only 20 producers support 8,000 primary consumers, so each producer must be very large, like a tree.