The answer to this question is biology.
cell,tissue,organs,organ system,body
Yep, it is!!
No. They are different categories of science. Physical sciences include Physics, (experimental, theoretical, particle physics etc). Life sciences include the Biology studies (plant, animal,...
life science is science about different organisms and humans.
Hope and Regeneration in Creation and Nature
The Cosmic Process and Human Awareness
How a Physicist Became a Priest
The Spiritual Aspect of Particle Physics