About what percentage of sunlight available to them, are the primary producers able to convert into Net Primary Productivity?
1. 1
2. 5
3. 10
4. 50
Subtopic:  Ecological Pyramids |
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Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels? 

1. Level PC is insects and level SC is small insectivorous birds
2. Level PP is phytoplanktons in the sea and Whale on top-level TC
3. Level PP is pipal trees and the level SC is sheep
4. Level PC is rats and level SC is cats


 

Subtopic:  Ecological Pyramids |
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The upright pyramid of number is absent in:

1. Pond

2. Forest

3. Lake

4. Grassland

Subtopic:  Ecological Pyramids |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology