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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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.

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Pyramids of Biomass in pond ecosystem are

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In an ecosystem of big trees, the pyramid (of numbers) is _____ type.

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In an ecosystem with a higher number of primary consumers than producers, the biomass pyramid will be

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What is the best definition of the food guide pyramid?

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Which of the given groups of aquatic organisms constitute the greatest biomass of autotrophs in the oceans?

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Eating too much food can make us 

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Terrestrial ecosystems (like grasslands) have upright pyramids of biomass because:

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The pyramid of biomass shows a sharp _________________ at higher trophic levels.