Scientific study of life, incl.

• Evolutionary biology – study of the origin and descent of species over time
• Ethology – study of behavior
• Genetics – the study of genes and heredity
• Molecular biology – the study of biology and biological functions at the molecular level, some cross over with biochemistry, genetics, and microbiology
• Botany – study of plants
• Developmental biology – the study of the processes through which an organism forms, from zygote to full structure
• Zoology - the study of animals
• Astrobiology – the study of the formation and presence of life in the universe