There are many examples of living organisms such as animals, plants & micro-organisms, Living organisms must be classified due to the enormous diversity in living organisms species, so they must be classified into groups...
The cell is the building and functional unit of the living organism , Living organisms may be unicellular or multicellular , Although the similarity of all living organisms in their building and functional unit...
Risks of blood transfusion When the transfused blood to a person is incompatible with his blood group , Some symptoms appear on him, Such as Shiver, Headache, Chest pains, Breathlessness, Blueness, Tachycardia, Hypotension and...
The extinction Extinction is the continuous decrease without compensation in the number of a certain species of the living organisms until all the members of the species die out or it is the dying...
