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55. When a person breathes, the lungs absorb oxygen, which is used by cells to carry out the process of (1) respiration (3) photosynthesis (2) secretion (4) excretion



Answer :

A. respiration

Respiration is the process of breathing.

Photsynthesis is the process a plant uses to create its own food.

Secretion is the movement of material from one point to another.

Excretion is the removal of waste.

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