Food Chain, Food Web and Food Pyramids

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Food Chain, Food Web and Food Pyramids: Overview

In this topic, we will focus on the content of the food chain in detail. We will also learn about food web and food pyramids through a labelled diagram.

Important Questions on Food Chain, Food Web and Food Pyramids

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Which of the following is the given ecological pyramid?

 

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Given below is one of the types of ecological pyramids.

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This type represents:

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In an ecosystem if dry weight of producers is 809 Kg m-2. Then what will be the biomass of tertiary consumers?

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An inverted pyramid of biomass is seen in

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Following diagram represents:

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Which of these is a way of conserving the environment?

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The biomass pyramids of three ecosystems are represented below.

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The ecosystem most likely are:

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Conservation of the environment is our fundamental duty.

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What are the major threats to the ecosystem?

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What is a food pyramid.

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 Give biological explanations for the following:

 All the food chains begin with green plants

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Name the ecological pyramids that is not upright?

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The variation in biomass at different tropic levels in a pond ecosystem is represented by which of the given pyramids?

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An inverted pyramid of __A__ may occasionally be observed in __B__ communities.

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 What can be concluded from pyramid of biomass of a grazing food chain ?

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In which ecosystem an inverted pyramid of biomass can be found?

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Given figure indicates a pyramid of biomass in an aquatic ecosystem.
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Determine A and B and select the correct answer.
(i) A is the crag which supports and B is the crop which is supported.'
(ii) A is the crop which is supported and B is the crop which supports.
(iii) A is phytoplanktons and B is zooplanktons.
(iv) A is zooplanktons and B is phytoplanktons.

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What kind of pyramid is represented by the given figure?
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Read the given statements and select the correct option.


Statement 1: In an aquatic ecosystem, pyramid of biomass is inverted.
Statement 2: Biomass depends upon reproductive potential and longevity of individuals.

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Study the following statements and choose the correct ones.
I) Montreal Protocol is aimed at the safe disposal of radioactive wastes.
II) The association between honey bees and orchid flowers is commensalism.
III) At high altitude, the red blood cell production increases in man to compensate low oxygen availability.
IV) The pyramid of the biomass in sea is inverted.