Secondary productivity is
The rate of formation of new organic matter by consumers
Greater than primary productivity
$5 \;\%$ less than primary productivity
Equal to the gross primary productivity
Which of the following trophic levels are occupied by sparrow?
In a food chain, which of the following produces in the largest amount
What is the ultimate source of energy for the ecosystems ?
Nektons are
If a single plant species is removed from a food web, then most likely