Question

cactus has no leaves. why do you think these plants have no leaves​

Answer 1

Most cacti are lacking traditional leaves because they evolved and grow in a hot, dry environment. Their adaptation is one of survival by storing water as long as possible when it is available. ... Cacti have adapted by being leafless and growing spines but not thorns. There is a big difference between the two.

The smaller or fewer leaves a plant has, the less water is lost during transpiration since it has less surface area open to the sun and wind. For desert plants with small leaves or none at all, the twigs and stems help to carry out photosynthesis.

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Answer 2

Answer:

so as to make the process of transpiration slow