EASY
9th West Bengal Board
IMPORTANT
Earn 100

Mention the two main categories of components of ecosystem.

Important Questions on Ecology and Ecological Organization

MEDIUM
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>Answer the following :>Q 4
Snake, dragon fly, toad and grass- arrange them according to the levels of a food chain.
MEDIUM
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>Answer the following :>Q 5

Write the terrestrial organisms in a sequence who eats whom and ultimately form a chain of at least three steps.

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EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>EXERCISE>Q 1
An ecosystem may be defined as
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>EXERCISE>Q 2
An ecosystem is composed of-
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>EXERCISE>Q 3
Which one is a primary consumer?
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>EXERCISE>Q 4
The primary source of energy in an ecosystem is-
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>EXERCISE>Q 5
In an ecosystem, decomposers include-
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 15 - Ecology and Ecological Organization>EXERCISE>Q 6
A plankton is-