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CBSE Notes 2011-2012 » X-Science-Term2

Our Environment

Name the process in which a harmful chemical enters the food chain and gets concentrated at each lev...

Multiple choice question

Name the process in which a harmful chemical enters the
food chain and gets concentrated at each level on the food
chain.

The total biomass in a terrestrial ecosystem will be greatest for which trophic level ?

Multiple choice question

The total biomass in a terrestrial ecosystem will be greatest
for which trophic level ?

Interdependence of organisms on other organisms for their sustenance is described as

Multiple choice question

Interdependence of organisms on other organisms for their
sustenance is described as

In terms of a food chain or food pyramid, organisms that trap energy such as plants are known as

Multiple choice question

In terms of a food chain or food pyramid, organisms that
trap energy such as plants are known as

On an average energy transferred from one trophic level to another is

Multiple choice question

On an average energy transferred from one trophic level to
another is

A food chain comprises of frog, snake, grass and grasshopper. The organisms at third trophic level i...

Multiple choice question

A food chain comprises of frog, snake, grass and
grasshopper. The organisms at third trophic level is

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