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🔬 Biology  ·  Organisms and Populations  ·  NEET

The Mediterranean orchid Ophrys uses petals resembling a female bee to achieve pollination. This strategy is best described as:

Answer: Sexual deceit by the orchid.

  • A Amensalism with the bee
  • B Mutual nutrition exchange
  • C Sexual deceit by the orchid
  • D Parasitism of the bee

Correct answer: C. Sexual deceit by the orchid

Explanation: Ophrys petals mimic a female bee so the male bee attempts pseudocopulation, transferring pollen; this is sexual deceit, not a reward-based mutualism.

Exponential (J-curve) vs Logistic (S-curve) GrowthtimePopulation (N)Exponential (unlimited resources)K (carrying capacity)Logistic (limited resources)Logistic growth slows as N approaches K; exponential growth never slows down

Exponential growth produces an ever-steepening J-curve with no limit, an unrealistic long-term model; logistic growth produces an S-curve that levels off at the carrying capacity K, as growth rate (K−N)/K shrinks to zero once resources are fully used.

Concept context

How organisms interact with abiotic factors and respond to stress, plus population attributes, growth models, and interspecific interactions such as predation, competition, and mutualism.

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