Animal Tissue
Group of cells with similar origin, structure and function is called tissue. Study of tissue is called Histology. Xavier Bichat is regarded as father of histology while Marcello Malpighi is founder of histology. The term tissue is coined by Mayer. Coelenterates are first group of organisms with tissue.
Types of animal tissue:
1. Epithelial tissue- origin ectodermal or mesodermal or endodermal.
2. Connective tissue- origin mesodermal
3. Muscular tissue- origin Mesodermal and
4. Nervous tissue- origin ectodermal.