EASY
12th West Bengal Board
IMPORTANT
Earn 100

 Draw a flow chart of Xerarch succession.

Important Questions on Ecosystem

HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 2
What is Biogeochemical cycle? Describe the carbon cycle.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 3
Write about the salient features of phosphorus cycling in an ecosystem with the help of a chart.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 6
Describe the ecosystem of a pond.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 7
Describe the ecological pyramids of number and energy with examples.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 8
 Give an account of the energy flow within an ecosystem.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 10
How does a stable climax community come into existence in a hypothetical unexplored region ?
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 11
What is decomposition? Write about the processes involved in decomposition.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 14 - Ecosystem>EXERCISE>Q 13
What do you mean by primary succession and secondary succession? What is hydrarch succession and xerarch succession?