The cell is the basic unit of structure of living organisms

The cell

Animal cell and plant cells

The animal cell and the plant cell

The systems are composed of the organs , the organs are composed of the  tissues , and the tissues are composed of the cells , The cell is the building unit of the living organism’s body , and it is the unit of structure in the living organisms .

The animal cell

The animal cell is the building unit of the animal body , The body of the animals or the humans is made up of a group of systems ( as the digestive system , the respiratory system , the circulatory system , ……..) that work integrally to keep the living organisms alive .

The systems consist of a set of organs ( as the stomach , two lungs , the heart , ………) , Each organ consists of a group of the similar or different tissues , Each tissue consists of a group of symmetric units called the cells .

The plant cell

The plant cell is the building unit of the plant body , and the plant body also is made up of  system ( the shoot system and the root system ) .

These systems are made up of organs as the roots , the stems and the leaves , Each organ in the plant is made up of tissues , and each tissues is made up of similar units called the cells .


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