Question

what is animal tissue. explain it.​

Answer 1

Answer:

group of cells of similar structure and functions in animals

Answer 2

Answer:

The animal cells are grouped together to form animal tissues. These tissues vary in their structure, function, and origin. The animal tissues are divided into epithelial, connective, muscular and nervous tissues.

Explanation:

• Epithelial tissues form the protective covering and inner lining of the body and organs. These tissues were the first to evolve during evolution and were first formed during embryonic development. They develop from the ectoderm, mesoderm and endoderm of the embryo.
• Connective tissues develop from the mesodermal cells of the embryo. they support and bind other tissues in the body. These are made up of three components:
• Intercellular Matrix: It is made up of mucopolysaccharide, specifically hyaluronic acid.
• Cells: The major cells include fibroblasts, adipocytes, plasma cells and mast cells.
• Fibres: Connective tissues are made up of three types of fibres, namely, collagen fibre, elastic fibre, reticular fibre.
• The muscular tissue develops from the mesoderm of the embryo. It is classified into three types:
• Cardiac
• Smooth
• Skeletal
• Nervous tissue makes up the peripheral and the central nervous system. It develops from the ectoderm of the embryo. It possesses the ability to initiate and transmit the nerve impulse.