In, 1898 the Russian cytologist S. G. Navashin discovered double fertilization in angiosperms, which consists in the union of a sperm-ucleus with an egg cell nucleus and the union of a second sperm nucleus with the nucleus of an endosperm-producing cell.
Bioculture is the combination of biological and cultural factors that affect human behavior. Bioculture is an area of study bounded by the medical sciences, social sciences, landscape ecology, cultural anthropology, biotechnology, disability studies, the humanities, and the economic and global environment.
The biological perspective is one of the major approaches to doing psychological research, which is focused on the idea that behaviors have biological causes. Also known as physiological psychology or biopsychology, it has strong links with many different sciences, particularly neurology and genetics.