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The zygote is the initial cell formed when two gamete cells are joined by means of sexual reproduction.
sperm cell, egg, gamete, sperm, sexual reproduction, reproduction, fertilisation, zygote, offspring, human, biology
The reproductive system is a series of organs working together for the purpose of reproduction.
This animation introduces the most important systems of the human body.
This animation introduces the most important organ systems of the human body.
The reproductive system consists of organs which work together for the purpose of reproduction.
Our gametes are haploid cells produced from diploid cells by meiosis, a special type of cell division.
This animation demonstrates the development of the human embryo and foetus.
Glands of the endocrine system secrete hormones into the blood.