Nov 27, 2025 · This articles describes the organs, both male and female, that are involved in human reproduction. The reproductive process itself is covered in other articles.

In early embryos, the reproductive systems are undetermined. By birth the organs appropriate to each sex have typically developed but are not functioning. They continue to grow, and at …

Most animals use sexual reproduction to have babies. This means that two sex cells, one from a male and one from a female, join together to create a baby. In some animals, including many …

Nov 21, 2025 · What is human development in biology? How does a human begin to develop from a single cell? What are the main stages of human development before birth? How do organs …

Reproduction is the process by which a living organism creates a likeness of itself. The process may be either asexual—meaning that an organism reproduces by itself alone—or …

Nov 14, 2025 · Human sexual activity - Reproductive System, Development, Change: One’s anatomy and sexuality change with age. The changes are rapid in intra-uterine life and around …

Nov 14, 2025 · Two major determinants of human sexual activity are the inherited sexual response patterns that have evolved as a means of ensuring reproduction and the degree of …

Learn about human embryonic and fetal development from fertilization to birth.

What is a human being? Humans are culture-bearing primates classified in the genus Homo, especially the species Homo sapiens. They are anatomically si

Sterilization, surgical procedure for the permanent prevention of conception by removing or interrupting the anatomical pathways through which sperm and eggs travel. Methods of …