Which of the following is a physical process in which oxygen enters the body and carbon dioxide leaves?, Photosynthesis, Breathing, Circulation, Digestion, The exchange of gases between alveoli and blood capillaries is called:, Respiration, Breathing, Gaseous exchange, ) Inhalation, Which structure protects the lungs?, Diaphragm, Ribcage, Alveoli, Bronchi, During gaseous exchange, oxygen moves from alveoli to blood because:, Oxygen level is higher in blood, Oxygen level is higher in alveoli, Carbon dioxide is absent, None of the above, Which of the following carries oxygen from lungs to body cells?, Plasma, Platelets, Red blood cells, White blood cells, The movement of air into the lungs is called:, Exhalation, Diffusion, Inhalation, Circulation, Which gas is removed from the body during exhalation?, Oxygen, Nitrogen, Carbon dioxide, Hydrogen, The diaphragm helps in breathing by:, Pumping blood, Protecting lungs, Contracting and relaxing, Producing oxygen.

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