First slide

Ecological Pyramids

Question

Refer to the given figure showing pyramid of number in a certain habitat. Identify A, B and C.
A B C
1. Grass Rabbit Fox
2. Phytoplankton Small fish Large fish
3. Tree Birds Hawk
4. Tree Birds Parasites

Easy

A

1
B

2
C

3
D

4

Solution

Number of individuals in a trophic level when represented diagrammatically is referred to as pyramid of numbers. The given number pyramid is urn shaped where the producer number is lower with primary consumer maximum in number and lastly the secondary consumer is lower in count than primary consumer.
Such number pyramid is found in tree ecosystem. In the tree ecosystem, the single large tree is able to provide food to several herbivores like birds, squirrels, insects which support few carnivores.

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