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A tissue is a____________
A)A group of separate organs that coordinated in their activities
B)Group of similar cells that function together in a specialised activity
C)Layer of cells surrounding an organ
D)Sheet of cells, one layer thick

Last updated date: 13th Jun 2024
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Hint: Tissue is a group of cells and a level of organization in multicellular cells. A group of cells which are similar, have a common embryonic origin and function together to carry out specialized activities form a tissue.

Complete answer:
It forms an organization level in multicellular organisms.
 The cells are in close proximity to each other.
There are four types of tissues on the basis of their structure and function :
Epithelial tissue: The cells of these tissues form the lining of membranes. They are arranged in continuous sheets in single or multiple layers. The cells are closely packed and held together by cell junctions. They play a role in protection, filtration, secretion, absorption and excretion.
Connective tissue: This is the most abundant tissue in the body. They mainly protect and support the body and its organs. The major element of this tissue is the extracellular matrix. Examples include cartilage, bone, blood, adipose tissue, etc.
Nervous tissue: The nervous tissue consists of nerve cells called neurons. They conduct nerve impulses.
Muscle tissue: These tissues consist of cells called muscle fibre which are involved in contraction. They are classified into skeletal, cardiac and smooth muscular tissue.

Let us analyze the options to find out the correct option.

Option A, C and D: These are incorrect options.

Option B: Tissue is a group of similar cells that function together in a specialised activity. Therefore, this is the correct option.

Hence, the correct answer is option (B)

Note: A group of tissues that perform a specialized function forms an organ.
Study of tissues, their appearance, organization and function is called Histology.