Question

Assertion [A]: Dermal tissues in desert plants are thick and waxy.

Reason [R]: Waxy coatings helps in transpiration.

• A. Both A and R are correct
• B. A is correct but R is incorrect
• C. Both A and R are incorrect
• D. A is incorrect but R is correct

Answer 1

The correct option is B A is correct but R is incorrect

Dermal tissues perform the following functions in plants:
$\bullet$ Protection against mechanical injuries.
$\bullet$ Prevention of invasion by parasites.
$\bullet$ Prevention of water loss from the plants.

The waxy coating present on the surface of the leaf is called cuticle which prevents the loss of water from the plants. Water availability is sparse in desert like conditions. Hence, these thick coatings helps desert plants to prevent transpiration.