Cacti survive in a desert because:

a. It has a flat green stem to store water and prepare food by photosynthesis.

b. The stem is covered with a thick layer, which helps to preserve water.

c. Its roots are distributed on the surface to absorb water.

d. Leaves are modified into spines to prevent loss of water.

Both a and b are wrong

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Both b and c are wrong

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a is wrong but b is correct

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Both a and d are correct

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Solution

The correct option is D
Both a and d are correct

Cactus survives in deserts due to following adaptations: It has a flat green stem to store water and prepare food by photosynthesis. The stem is also covered with a thick waxy layer, which helps to retain water. Its roots go very deep into the soil for absorbing water. Leaves turn into spines to prevent loss of water.

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Similar questions

Cacti survive in a desert because:

a. It has a flat green stem to store water and prepare food by photosynthesis.

b. The stem is covered with a thick layer of cuticle, which helps to preserve water.

c. Its roots are distributed on the surface to absorb water.

d. Leaves are modified into spines to prevent loss of water

In a cactus the leaves are modified to be in the form of pricks or spines.

(i) To protect itself from animals.

(ii) Reduced surface area which in turn prevents loss of water.

Are both the statements (i) and (ii) True?

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