NEET BIOLOGY

Detailed explanation-1: -Key Points. Male cones give rise to microspores, which produce pollen grains, while female cones give rise to megaspores, which produce ovules.

Detailed explanation-2: -Male pine cones produce pollen, which is like a powder. The male cones release their pollen, which is carried around the air by blowing wind, and hopefully to another female pine cone on a different pine tree. If the pollen reaches a female pine cone, this process is called pollination.

Detailed explanation-3: -The female cone (megastrobilus, seed cone, or ovulate cone) contains ovules which, when fertilized by pollen, become seeds.

Detailed explanation-4: -In pines, pollen is produced in staminate (male) cones, which is wind-blown to young female cones. After fertilization, scales develop on the cone.

Detailed explanation-5: -Pollen grains are carried by the wind and reach female cones. What are the reproductive structures of angiosperms? Flowers are reproductive organs that are composed of four kinds of specialized leaves: sepals, petals, stamens, and carpels.