Please post detailed answers to the following questions. Please use complete sentences. Do you think it is possible to reach a state on Earth of NOT being dependent on the Sun for energy? Please explain.

I doubt it.  

I suppose it might be possible if fusion power could actually work.  

But, even if there is still intelligent life on Earth, the Sun will become too hot to support life on Earth and then become a red giant before it would become too cold to support life.

Explanation:

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.