Which of the following structures help a cactus plant to reduce water loss through transpiration?

Flowers

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Spines

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Petioles

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Small roots

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Solution

The correct option is B Spines
The desert plants grow in water scarce areas. Hence, the leaves of cactus is modified into spines or needle like leaves to conserve water by minimising transpiration. A waxy coating is also found on the stem of these plants which reduces evaporation of water. The fleshy stems store water and food in cactus.

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Similar questions

Q. Which among the following adaptations help a cactus plant to minimise water loss?

Q. Which adaptation helps the cactus plant to minimise loss of water?

Q. Which of the following statements is/are correct?

Statement 1: The leaves in a cactus are modified into spines.

Statement 2: Thick waxy stem and spines reduces water loss through transpiration in a cactus.

Assertion (A): In Cactus, leaves are reduced to small spines with less surface area.
Reason (R): Spines helps in preventing the cactus from losing water through evaporation.

Q. To prevent the loss of water, the leaves of cactus plants are modified into

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