Q24 of 50 Page 475

Construct a food web by connecting three food chains.


A food web having three food chain:



More from this chapter

All 50 →
22

Draw a line diagram to show flow of solar energy in ecosystem.

 23

In a certain study conducted on occurrence of DDT along food chains in an ecosystem, the concentration of DDT in grass was found to be 0.5 ppm (parts per million), in sheep it was 2ppm and in man it was 10 ppm. Why was the concentration of DDT maximum in case of man?

 25

“Energy flow in a food chain is unidirectional”. Justify this statement.

 26

Show steps of food chains operating in:

(a) Forests


(b) Grasslands


(c) Ponds.