Question

Mark the important defence mechanism in plants against herbivory.

• A. Spines
• B. Toxic Chemical
• C. Both A & B
• D. None of these

Answer 1

The correct option is C Both A & B

A few plants have developed different instruments both morphological and compound to ensure themselves against herbivory.

(1) Morphological resistance components:

(a) Cactus leaves (Opuntia) are altered into sharp spines (thistles) to dissuade herbivores from benefiting from them.

(2) Chemical resistance components:

Chemical substances, for example, nicotine, caffeine, quinine, and opium are delivered in plants as a piece of self-preservation.

So, the correct option is 'Both A & B'.