A tissue is a group
of cells that have a similar shape and function. Tissues are known for
performing the same function especially when they are group together. They act
as one, and when anything goes wrong, it may affect the entire group. Different
types of tissues can be found in different organs. In humans, there are
four basic types of tissues: epithelial, connective, muscular, and nervous
tissue. Among these four tissues, they are also sub tissues playing a
supportive role to major tissues.
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