On page 7 you will find a figure. in this figure you will see that organisms lead to population and populations lead to communities. what do communities lead to

Ecosystem

Explanation:

A community refers to all the animals and plants that coexist in a given area. A community leads to an ecosystem. An ecosystem is an ecological unit consisting of a community of living organisms and its physical environment. Such a unit will consist of plants, animals and microorganisms as well as non-living components like water, soil and air.

the answer to your question is sperm

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.