Ch - Ecosystems

Q1. Choose the biotic components of an environment from the following:

• Air

• Consumers

• Scavengers

• Temperature

• Decomposers

Q2. ________ is a sequence which shows how living things in an environment are related to each other according to their feeding habits.

Q3. Identify the type of pyramid shown in the picture:

• Partly upright pyramid

• Inverted pyramid

• Upright pyramid

Q4. It is an interaction between two different organisms living in close physical association, typically to the advantage of both.

The given statement is correct for which of the following:

• Parasitism

• Symbiosis

• Predation

Q5. Identify whether the animal is cold-blooded or warm-blooded.

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Q6. Name the forest ecosystem shown in the picture.

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Q7. How can you show the amount of energy that flows from producers to consumers?

• Food chain

• Food pyramid

• Food web

Q8. Why are decomposers important in an ecosystem?

• They directly give energy to consumers.

• They break down dead things and put nutrients back in the ground.

• They are not important. They are harmful.

Q9. Name any two biotic and two abiotic components you can see in the given picture.

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Q10. Identify the type of consumer shown in the picture.

• Secondary consumer

• Primary consumer

• Tertiary consumer