Q6. In which type of age pyramid does the pre-reproductive population size dominate?
- A. Stable
- B. Declining
- C. Expanding
- D. None of the above
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This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Organisms and Population. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.
Key concepts covered in this specific test include Following, Interactions, Correctly, Selected, Characteristic, and Statements.
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Which of the following interactions is NOT correctly matched?
Commensalism - One benefits, other is unaffected
Parasitism - Both species benefit
Mutualism - Both species benefit
Competition - Both species are harmed
Which of the following is an r-selected species characteristic?
Long lifespan
Few offspring with high parental care
Rapid reproduction and high number of offspring
Slow development
Which of the following statements about invasive species is incorrect?
Invasive species can outcompete native species.
They always improve ecosystem biodiversity.
Invasive species may lack natural predators in their new habitat.
They can alter ecosystem structure and function.
Which of the following statements about food chains is correct?
Energy flow in a food chain is unidirectional.
All organisms in a food chain occupy the same trophic level.
Primary consumers feed on secondary consumers.
Producers obtain energy from consumers.
Which of the following is an incorrect statement about keystone species?
Keystone species have a significant impact on ecosystem stability.
They are always the most abundant species in an ecosystem.
Removing a keystone species can cause ecosystem collapse.
Predators and primary producers can both be keystone species.
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