Wikipedia

This is the word that I found: http://en.wikipedia.org/wiki/Biology

The word that I found is Biology. Biology is including the botany, zoology and microbiology.
Botany is the scientific study of plants' life. Botany covers a wide range of scientific disciplines that study plants, algae, and fungi including: development, structure, reproduction, growth, metabolism, development, diseases, and chemical properties.

Zoology is including ethology, behavioral ecology, anatomy, embryology, molecular genetics, developmental biology, evolutionary biology, systematics, cladistics, phylogenetics,phylogeography,biogeography, taxonomy,mammalogy, herpetology, ornithology, entomology and palaeontology.Biology is comparative anatomy studies the structure of animals.

Microbiology is the study of microorganisms. Microbiology is a broad term which includes many branches like bacteriology, virology, mycology, parasitology etc. Microorganisms includes eukaryotes such as fungi and protists,prokaryotes, bacteria and some kinds of algae.

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