what is exactly biology ? some definition of biology are Biology
(from Greek: βίος, bio, "life"; and λόγος, logos, "speech" lit.
"to talk about life"), also referred to as the biological
sciences, is the scientific study of life. Biology examines the
structure, function, growth, origin, evolution, and distribution
of living things (wikipedia.org) The science of life and of
living organisms, including their structure, function, growth,
origin, evolution, and distribution. It includes botany and
zoology and all their subdivisions
(http://www.thefreedictionary.com/biology) The scientific study
of life; science that seeks to understand the living world. The
science that studies living organisms. Characteristic life
processes and phenomena of living organisms; the biology of
viruses. All the plant and animal life of a particular region.
The study of living and non-living
organisms.(http://www.biology-online.org) from those three
definition we can resume that biology is science, studying of
live, organism, process