Explain how animals communicate in such a biologically dense ecosystem.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

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.