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.

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 …

Animal development, the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the …

Nov 21, 2025 · What changes happen in the body after birth as a child grows? How do genes and the environment influence human development throughout life?

Nov 21, 2025 · What is fertilization in biological reproduction? What role do sperm and egg cells play in fertilization? What are gametes and how do they relate to fertilization? What is formed …

Appearing initially as a tiny mass of cells, it eventually gives rise to the fetus, an obvious human form. In the first days of the embryo’s existence, it journeys along the fallopian tube.

Nov 4, 2025 · Reproduction, process by which organisms replicate themselves. Reproduction is one of the most important concepts in biology: it means making a copy, a likeness, and …

Human development - Reproductive Organs, Secondary Sex Characteristics: The adolescent spurt in skeletal and muscular dimensions is closely related to the rapid development of the …

Nov 21, 2025 · Copies of genes are transmitted through sperm and egg and guide the development of the offspring. Genes are also responsible for reproducing the distinct features …

Nov 27, 2025 · It begins to reach full development at puberty and thereafter exhibits dramatic changes during each menstrual cycle. It undergoes further changes before, during, and after …