In simple words, Life Science is the Study of organisms -like (Plants, Animals, mitochondria,Bacteria, All the Living Species ). Life Science includes Many Branches Some of them are Biology, Ecology, Zoology, Evolutionary Biology, Anatomy, etc. In Life Science Mainly we Study about life of the Humans, Plants, How the Human Evaluated, Evolution of all the Species, Our Surrounding Ecology ,etc. Life Science also Deals with the study of some natural phenomena like, Ecology, Universe, Oceans, etc.
Now we were discuss about the Branches of Life science, There are mainly more than 30 branches but the important branches are Biology, Ecology, Zoology, Evolutionary Biology, Anatomy, etc.
Biology :- Biology deals with the life of the organisms, Habits of the organisms, Food they eat, their lifestyle, their surviving nature, their body cells bones, Body Designs etc.
Zoology :- Zoology Deals with the study of Animal Kingdom. In Zoology we have study about the structures of the animals, their habits, Embryology, Evolutions, Classification, etc.
Evolutionary Biology :- Evolutionary Biology is the sub-field or the branch of biology In which studied about the evolution of the organisms that produced the diversity of life on Earth, starting from a single common ancestor. These processes include natural selection, common descent, and speciation is the process of evolutionary biology.
Anatomy :- Anatomy is the Oldest Branch of the Science which Deals with the Human Structures and Their Parts Like Bones etc.