Question

the spine of a cactus plant are modified stem, roots, leaves, flowers​

Answer 1

Answer:

leaves

Explanation:

The spines of cacti are actually modified leaves. It helps to imagine cacti as large stems with spines for leaves. One of the main functions of spines is fairly obvious – they protect cacti from predators. Their sharp spines will turn away most animals, but not all.

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Answer 2

Leaves.

In desert, where there is scarcity of water, to avoid excess loss of water from plants through the process of transpiration, the leaves of cactus are modified to small spines, to reduce excess loss of water from plant's body.

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