Author: Heba Soffar

Structure of animal cell 0

The structure of the animal cell

The animal cell The animal tissue is composed of small units called the animal cells, where each cell contains many components, The animal cells are various sizes and have irregular shapes, and most of...

The plant cell 0

The structure of the plant cell

The plant cell The plant tissue (as the epidermis tissue of the onion leaf) is composed of small units known as the plant cells, where each cell contains many components, The plant cell is...

Respiratory system 0

How can you keep the respiratory system healthy?

The respiratory system Any changes in our lifestyle and environment are responsible for poor respiratory system health, It is very important to keep our respiratory system healthy to keep away from diseases that affect...