Which of the following organisms convert plant matter into animal matter?
Earthworm
Goat
Termites
Frog
Which of the following is correct sequence in food chain
Identify the correct type of food chain.
Dead animal $\rightarrow$ Blow flymaggots $\rightarrow$ Common frog $\rightarrow$ Snake
With regard to ecological food chain, man is a
Greater primary productivity depends upon
Which of the following groups is absolutely essential functional component of the ecosystem?