Practice question

MCQ

Question

Caterpillars produce defensive vibrations that travel through plant stems to deter its predators. The table below summarises data collected from three plant species, including vibration amplitude measured 10 cm from the caterpillar, predator response time, and the Young's modulus of the stem. Choose the option that correctly provides a mechanistic explanation for the data presented in the above table.

Options

Choose one · Correct answer highlighted

A is a herbaceous plant and its stem dissipates energy faster compared to B and C which are woody plants. C is a woody plant, and predators detect vibrations on it more easily compared to A and B which are herbaceous plants. Predators are more inefficient on herbaceous plant species A and B, and more efficient on woody plant species C. C is an herbaceous plant and its stem is more likely to transmit vibrations more effectively when compared to plant species A and B which are woody. Correct

Explanation

Analysis of caterpillars produce defensive vibrations that travel through shows C is an herbaceous plant and its stem is more likely to tran represents established outcome. functional assays supports option D, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.

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