Yes. Organs are composed of tissues, and tissues are composed of cells.
Blood cells Muscle cells Nerve cells Tissue cells Brain cells Bone cells and the list goes on
groups of different kind of tissue combine to form organs
there are 200 types of cells
yes
Cellular Differentiation
Yes, the hard tissue and the Bone marrow
red and white like the blood cells
1000
epidermis, vascular, and something else...
No, because all of the cells are the same but the function they perform in the tissues may vary.
There are many ways in which cells become different. They could take the shape of many different kinds of things.
Human bodies are conformed of 4 basic kinds of tissue. Those are Nervous Tissue, Epithelial Tissue, Connective Tissue and Muscular Tissue. Connective tissue is the most abundant and widely spread and the one that performs more different functions.