Chemical, cell,organ,tissue, system I don't know the other two name
The answer lies within you.
Andreas vesalius of the renaissance period
willies
Keratin forms hair , skin , nails in human body . It also forms horn , hooves in cattle , all these structures are part of exoskeleton .
7
The study of the structures of the body is known as anatomy.
The answer lies within you.
in human body they are hard supporting structures called bones
because the rat is very close to the human body and to assist the learning student with identification of these structures and systems
There are different types of cells, but the structures are basically same, with similar organelles and other structures.
The skleletal system
Andreas vesalius of the renaissance period
The foundation of the human body is the bone structure which holds all other structures of the body.
Blood vessels are the most abundant structures
willies
Anatomy and PhysiologyAnatomy-Biological field that deals with bodily structures as revealed by dissection.Physiology-study normal function of human body
All of them. A good source is Grey's Anatomy book.