Sexual reproduction

answer the following:

Explain the following concepts:
Asexual – sexual reproduction.
Mitosis – Meiosis
Diploid – Haploid
Gametes
Fertilization
Zygote
Syngamy
Blastocyst
Implantation
Gastrulation
Embryo – Fetus
Explain fertilization process from cellular level to fetus (as per video time 1:08:00)
After learning about fertilization process, and according to nature and objectively, and scientifically speaking, when does human life begin? Why?

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