Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.

What would happen to the number of grass plants and foxes if the number of rabbits:

(a) Increased

(b) Decreased

Match the terms given in column I with the terms given in column II and column III having the same meaning:

What percentage of the solar energy is trapped and utilized by the plants?

What percentage of energy available at the producer level is transferred at successive trophic levels in a food chain?