NEET 2016 Phase 2 · BiologyPrevious Year Question
Which of the following is correct for r-selected species? (NEET 2016 (Phase 2))
Answer: (A) Large number of progeny with small size. Answer: (A) Large number of progeny with small size.
- A.Large number of progeny with small size✓
- B.Large number of progeny with large size
- C.Small number of progeny with small size
- D.Small number of progeny with large size
Correct Answer
(A) Large number of progeny with small size
Solution & Explanation
Answer: (A) Large number of progeny with small size. Solution: r-selected species maximise their intrinsic growth rate (high r) by producing a large number of small-sized offspring (e.g. oysters, pelagic fishes), as opposed to K-selected species which produce a small number of large offspring (birds, mammals). NCERT: Ch 11, p.196, lines 19-21 — "Some produce a large number of small-sized offspring (Oysters, pelagic fishes) while others produce a small number of large-sized offspring (birds, mammals)."
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