EASY
12th CBSE
IMPORTANT
Earn 100

Name an omnivore which occurs in both grazing food chain and the decomposer food chain.

Important Questions on Ecosystem

HARD
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 6
Justify the pitcher plant as a producer.
HARD
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 7
Name any two organisms which can occupy more than one trophic level in an ecosystem.
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 8
In the Northeast region of India, during the process of Jhum cultivation, the forests are cleared by burning and left for regrowth after a year of cultivation. How would you explain the regrowth of forest in the ecological term?
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 9

Climax stage is achieved quickly in secondary succession as compared to primary succession. Why?

EASY
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 10
Among bryophytes, lichens and fern, which one is a pioneer species in a xeric succession?
EASY
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 11
What is the ultimate source of energy for the ecosystems?
MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 12
Is the common edible mushroom an autotroph or a heterotroph?
HARD
12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 14 - Ecosystem>VERY SHORT ANSWER TYPE QUESTIONS>Q 13
Why are oceans least productive?