What does a food chain always start with ?

The food chain ends with …………

The number of levels in a food chain comprises mostly

………… denotes the relationship between the biotic factors.

Which of the following indicates the transfer of energy from one organism to the other ?

Between grass and grasshopper food chain ends with

You have prepared a work sheet for collecting information on observing different food chains. One of the following is important component in the work sheet.

The primary consumer is …………

………… denotes the relationship among the organisms in a food chain.

A grass land ecosystem had grass, grasshopper, snake, rabbit, frog and eagle. Then what are the primary consumers ?

Pyramid: Egypt:: Ecological pyramids:

By which of the following processes, biomass will be formed in organisms?

When biomass is used for energy production, that is called ……………

The transfer of energy from one trophic level to other trophic level

The ……………. feed on phytoplanktons.