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प्रश्न
What is an example of a morphological (physical) defence mechanism used by plants against herbivory?
पर्याय
Thorns or spines found on Acacia and Cactus species
Cardiac glycosides produced by Calotropis
Aposematism displayed by toxic leaves
Sticky glandular surfaces on Drosera
MCQ
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उत्तर
Morphological defences are structural adaptations that physically deter grazers from consuming plants. Thorns and spines on plants like Acacia and Cactus are effective physical barriers that injure or discourage herbivores from feeding, protecting the plant tissue from damage without relying on toxins.
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