How do the various leaf modifications help plants?
Tendrils: Leaves are converted into tendrils for climbing as in pear or into spines for defense as in cacti. Bulb: The fleshy leaves of onion and garlic store food. In some plants such as Australian acacia, the leaves are small and short-lived. The petioles these plants expand, become green, and synthesize food. Leaves of certain insectivorous plants such as pitcher plants, Venus flytrap are also modified leaves.