Trophic levels are formed by
Organisms linked in food chain
Only plants
Only animals
Only carnivores
What is the percentage of photosynthetically active radiation $(PAR)$, in the incident solar radiation.
Assertion : A network of food chains existing together in an ecosystem is known as food web.
Reason : An animal like kite cannot be a part of a food web.
The order of organism in an aquatic food chain is
Which of the following is a primary consumerin maize field ecosystem ?
In a food chain, lion is a