Classification of Animal Tissues Animal Tissues In multicellular animals, a group of similar cells along with intercellular substances perform a specific function. Such an organization is called tissue. The tissues arise from the undifferentiated cells of Primary Germ Layers i.e. Ectoderm, Mesoderm, and Endoderm. Features of tissues: These tissues form an organ like – the stomach, heart, and kidneys by organizing themselves in specific forms. These organs together form organ systems like the digestive system, respiratory system, etc. The study of tissues is called Histology. The English word ’tissue’ is…
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