GENERAL HISTOLOGY

Detailed explanation-1: -Tissue is a group of cells that have similar structure and that function together as a unit. Primary types of body tissues include epithelial, connective, muscular, and nervous tissues. Epithelial tissues form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.

Detailed explanation-2: -Organ-a group of tissues precisely arranged so that they can work together to perform specific functions.

Detailed explanation-3: -Answer: False. the correct answer is group of cells is called tissue.

Detailed explanation-4: -Complete answer: A tissue is a group of cells that has a similar origin, structure, and function. A similar origin means that they are resulting from the same layer of cells in the embryo. Due to common origin, there are similarities in their structure and hence perform similar functions.

Detailed explanation-5: -Epithelial Cells. These cells are tightly attached to one another. Nerve Cells. These cells are specialized for communication. Muscle Cells. These cells are specialized for contraction. Connective Tissue Cells.