12th Biology Monthly Test - 3 ( Botany - Ecosystem )

St. Britto Hr. Sec. School - Madurai

12th Biology Monthly Test - 3 ( Botany - Ecosystem )-Aug 2020

Time : 1.30 Hours

Part - A

Generic 2 - Answer All Question

Pyramid of energy is always upright. Give reasons

What are Anthropogenic grasslands?

Who introduced the concept of ecological pyramids? Write the other name of ecological pyramids.

What is PAR?

What are consumers?

What will happen if all producers are removed from ecosystem?

Discuss the gross primary productivity is more efficient than net primary productivity.

Write the name of two major components of Ecosystem.

What are producers?

What is a flagship species?

Part - B

Generic 5 - Answer All Question

Write about the significance of plant succession.

Generally in summer the forest affeted by natural frre. Over a period of time it recovers itself by the process of successions. Find out the types of succession and explain.

Write the classification of productivity of an ecosystem.

Various stages of succession are given below. From that rearrange them accordingly. Find out the type of succession and explain in detail. Reed-swamp stage, phytoplankton stage, shrub stage, submerged plant stage, forest stage, submerged free floating stage, marsh medow stage.

Name of the food chain which is generally present in all type of ecosystem. Explain and write their
significance.

Explain in detail about the process of succession.

Draw a pyramid from following details and explain in brief. Quantities of organisms are given-Hawks-50, plants-IOOO.rabbit and mouse-250 + 250, pythons and lizard-100 +50 respectively.

Explain in detail about "First law of thermodynamics".

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12th Biology Monthly Test - 3 ( Botany - Ecosystem )

St. Britto Hr. Sec. School - Madurai

12th Biology Monthly Test - 3 ( Botany - Ecosystem )-Aug 2020

Part - A

Generic 2 - Answer All Question

Pyramid of energy is always upright. Give reasons

What are Anthropogenic grasslands?

Who introduced the concept of ecological pyramids? Write the other name of ecological pyramids.

What is PAR?

What are consumers?

What will happen if all producers are removed from ecosystem?

Discuss the gross primary productivity is more efficient than net primary productivity.

Write the name of two major components of Ecosystem.

What are producers?

What is a flagship species?

Part - B

Generic 5 - Answer All Question

Write about the significance of plant succession.

Generally in summer the forest affeted by natural frre. Over a period of time it recovers itself by the process of successions. Find out the types of succession and explain.

Write the classification of productivity of an ecosystem.

Various stages of succession are given below. From that rearrange them accordingly. Find out the type of succession and explain in detail. Reed-swamp stage, phytoplankton stage, shrub stage, submerged plant stage, forest stage, submerged free floating stage, marsh medow stage.

Name of the food chain which is generally present in all type of ecosystem. Explain and write their significance.

Explain in detail about the process of succession.

Draw a pyramid from following details and explain in brief. Quantities of organisms are given-Hawks-50, plants-IOOO.rabbit and mouse-250 + 250, pythons and lizard-100 +50 respectively.

Explain in detail about "First law of thermodynamics".

Comment

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Name of the food chain which is generally present in all type of ecosystem. Explain and write their
significance.