Question

2. How are cactus adapted to survive in a desert?
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Answer 1

Answer:

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Explanation:

A cactus is able to survive in the desert due to the following features:

(i) It has long roots that go deep inside the soil for absorbing water.

(ii) Its leaves are in the form of spines to prevent water loss through transpiration.

(iii) Its stem is covered with a thick waxy layer to retain water.

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Answer 2

Answer:

Cactus are well adapted to survice in the desert because it has:

1. Thick stems that are used to store water.

2. Long, wide and very deep root system that can collect water from a large area or deep underground.

3. Spines which are modified leaves. These spines minimize the surface area and reduce water loss. It also protect the cactus from animals that might attack or eat them.

4. Thick and waxy cuticle to reduce water loss by evaporation.

5. Reduced number of stomata to reduce water loss by transpiration.

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