Explain how a nutrient can be a limiting factor in an ecosystem

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.

yes? sounds right, but you didn’t ask a question.

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.