Question

Use the key to classify each of the following described tissue types into one of the four major tissue categories.
Key:
a. Connective tissue
b. Epithelium
c. Muscle
d. Nervous tissue
_____    (1) Tissue type composed largely of nonliving extracellular matrix; important in protection and support
_    (2) The tissue immediately responsible for body movement
_    (3) The tissue that enables us to be aware of the external environment and to react to it
_____    (4) The tissue that lines body cavities and covers surfaces

Accepted Answer

Step 1: Understand the four major tissue categories: (a) Connective tissue, which typically has abundant extracellular matrix and provides support and protection; (b) Epithelium, which covers body surfaces and lines cavities; (c) Muscle tissue, responsible for producing movement; and (d) Nervous tissue, which processes sensory information and controls responses. Step 2: For the first description, 'Tissue type composed largely of nonliving extracellular matrix; important in protection and support,' identify which tissue type is characterized by a large amount of extracellular matrix and functions in support and protection. This matches connective tissue. Step 3: For the second description, 'The tissue immediately responsible for body movement,' determine which tissue type contracts to produce movement. This is muscle tissue. Step 4: For the third description, 'The tissue that enables us to be aware of the external environment and to react to it,' recognize that this involves sensory input and response, which is the role of nervous tissue. Step 5: For the fourth description, 'The tissue that lines body cavities and covers surfaces,' identify the tissue that forms protective layers on body surfaces and lines internal cavities, which is epithelium.

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