What is cell, tissue, organ and organ system?
- Organ system----- when different organs combine together forming organ system.
- Cell---- is the smallest living unit in the body that performs body function.
- Organ--- two or more different types of tissues working together forming organs.
- Tissues--- groups of similar cells doing the same work is known as tissue.
- Nerve cell---- a long-branched type of cell that sends messages quickly from sensory cells to nervous system.
- Bone cell----- A type of cell surrounded by calcium and phosphorous.
- Specialized job ---- Each type of cell has a specific job to do.
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