Class 12 · Ecosystem

Autotrophs & Ecological Pyramids — NEET Biology

📚 Practice Concept
📖 NCERT Source

Fill in the blanks. (a) Plants are called as_______because they fix carbon dioxide. (b) In an ecosystem dominated by trees, the pyramid (of numbers) is_______type.

NCERT Biology · Class 12 · Chapter 12 · Paragraph 40
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QuestionPractice Question

Which of the following pyramids can be both upright or inverted depending on the ecosystem?

📖 Solution & NCERT Explanation
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Correct answer: D Both (b) and (c)

Pyramid of biomass and number can be upright or inverted, depending on the ecosystem type (grassland vs. pond; forest vs. grassland).

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What does NCERT say about Fill blanks Plants are?
Fill in the blanks. (a) Plants are called as_______because they fix carbon dioxide.
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Practice this NCERT concept with questions on MedicNEET.
Which chapter is this from?
Ecosystem, Class 12 NCERT Biology.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

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