
Concept explainers
Define a tissue.

To review:
Definition of biological terminology, “tissue.”
Introduction:
The tissue is an organizational level consisting of group of structurally and functionally identical cells that perform a specific function.
Explanation of Solution
Some factors affect the structure and properties of a specific tissue. Extracellular material that surrounds the cell and the underlying connections between the cells of the tissue affect the properties of tissues. The different types of tissues are found in different parts of the body.
These tissues are organized into four broad categories:
Epithelial: Covers exterior surfaces of the body.
Connective: Binds the cells and organs of the body. Provides protection, support, and integration to all body parts.
Muscle: Responds to stimulus and contracts for movement. Three types of muscle tissues are found: skeletal, smooth, and cardiac muscle tissues.
Nervous: Propagates electrochemical signals in the form of nerve impulses to different parts of the body.
The tissues are found in all multicellular organisms; however, they are absent in unicellular organisms.
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