Question
Explain with the help of two examples, how certain plants have evolved morphological and chemical defenses against primary consumers such as cows and goats.
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Answer
- Thorns and spines are the most common morphological means of defence.
Example: spines of Acacia and cacti.
- Many plants produce and store chemicals, which when consumed by the herbivores make them sick, inhibit digestion, disrupt reproduction or even kill them.
Example: Calotropis produces highly poisonous cardiac glycosides.
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