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Which of the following is a system of organs that collects oxygen from the external environment and transports it to the bloodstream?

a. Endocrine system
b. Immune system
c. Integumentary system
d. Respiratory system

Respuesta :

eyitbay

Answer:D

Explanation:

Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.

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