How do the various leaf modifications help plants?

A modification of leaf is-

What is a seed ? How does it help in reproduction in plants?

CAM helps the plants in

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by :

How is the mycorrhizal association helpful in absorption of water and minerals in plants?

Describe the various types of placentations found in flowering plants.

Briefly describe the various steps involved in plant breeding.