Why is nitrogen important to organisms

It is an important part of many cells. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

Extra - Fun fact - Nitrogen makes up around 78% of the air you breathe.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.