Your right it is mutation
The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. ... The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
The piano could only be played with 12 fingers, which is rare because humans normally have ten fingers.
Answer:Photosynthesis is a process of cooking food by green plants using oxygen, Carbon dioxide, sunlight, water and minerals.
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