What is The decay cycle:

decay chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations.

Explanation:

oak trees? ? what was listed

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.