Question

what are pollen grains ?where are they produced ​

Answer 1

Answer:

Pollen grains are male microgametophytes of seed plants which produce male gametes.

Answer 2

Answer:

Pollen grains represent the male portion of the reproductive process in plants and trees. These tiny bodies are swirling in the air and on the legs of insects so that they can join the female part of the plant to create a new seed. This important process is known as fertilization.

Explanation:

Pollen grains are produced by male organs, stamens.