Same chapter3 marksDifficulty: Medium
Explain Gause's competitive exclusion principle and one way in which species avoid it.
Organisms and Populations
3 marksDifficulty: Medium
What are the three ways in which an organism can respond to a stressful environment? Give an example of each.
Original Khojo Papers practice question — not from a past board paper.
Answer
It may regulate, keeping its internal conditions constant as birds and mammals do. It may conform, letting its internal conditions change with the environment as most fish and invertebrates do. Or it may migrate to a more favourable place, or suspend activity by hibernating, aestivating or forming a spore or a resting stage.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Regulation is expensive in energy, which is why most animals conform.
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