Question

notes of animal tissue class 9 ​

Answer 1

Answer:

it real help you

Explanation:

follow me

i always help you

Answer 2

Answer:

Animal tissues

Animal tissues are made up of animal cells. These tissues are usually not rigid since the cells do not have cell walls.       Animal Tissues

Epithelial Tissues

Epithelial tissues are seen on the outer layer of a body or organ surface. They form the outermost protective layer of most animals.            Squamous Epithelium

Squamous epithelium forms a skinny and flat layer of tissues. They are semi-permeable and thus, perfect for gaseous exchange. They are present in the lining of the esophagus and mouth.

Cuboidal Epithelium

As the name suggests, they are cuboidal in shape and form the lining of salivary glands and kidney tubules. They provide mechanical support. They also form glandular epithelium when they form glands.

Columnar Epithelium

These tissues line the organs which help absorption and secretion, such as the lining of the intestines. They are made up of elongated cells. When cilia are present on these cells, they form ciliated columnar epithelium like those present in the respiratory tract.                                                                  

Explanation: