The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question.

The part labelled IV is 

which of the follwing pyramids is not used in ecology? pyramid of 

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

Organism J is normally sustained by energy from?

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

which of the following statements about organism L is correct?

Study the food chain illustrated below and use it to answer this question.

J-K-L-M-N

The position occupied by each of organisms  J K L M N in the food chain is known as the