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tatuchka [14]
3 years ago
7

Why are cacti green and why do they need needles

Biology
1 answer:
Arturiano [62]3 years ago
7 0

Answer:

The needle-like leaves act as a self-defense mechanism that protects the plant from predators. The stem of the cactus plant is swollen and contain numerous collapsible water-storage cells that store water for a relatively long period. The stem is green and performs photosynthesis.

Explanation:

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