name the important defence mechanism in plants against herbivory??plzzz Ans.. more fastly.....
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Name important defence mechanisms in plants against herbivory. Several plantshave evolved various mechanisms both morphological and chemical to protect themselves against herbivory. ... (a) Cactus leaves (Opuntia) are modified into sharp spines (thorns) to deter herbivoresfrom feeding on them.
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The herbivores are predators of plants and nearly 25% insects are phytophagous (feeding on plants). So, plants show morphological as well as chemical defense against herbivores such as
(i) Thorns of rose and Acacia as well as cactus.
(ii) Certain plants produce chemicals, such as opium, quinine, caffeine, nicotine, etc., to protect them against being grazed by the animals.
(iii) Calotropis produces highly poisonous cardiac glycosides. So, the cattle and goats do not eat this plant.
(i) Thorns of rose and Acacia as well as cactus.
(ii) Certain plants produce chemicals, such as opium, quinine, caffeine, nicotine, etc., to protect them against being grazed by the animals.
(iii) Calotropis produces highly poisonous cardiac glycosides. So, the cattle and goats do not eat this plant.
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