Monday
September 1, 2014

Homework Help: science

Posted by Anonymous on Monday, April 8, 2013 at 12:22am.

1.
_____ is the chemical reaction in cells that needs oxygen to release energy and produces carbon dioxide and water as waste. (1 point)

Breathing

Exhaling

Inhaling

Respiration

2.

Lungs are masses of _____, grapelike clusters of tiny sacs that are surrounded by _____, where oxygen and carbon dioxide are exchanged.
(1 point)

alveoli; capillaries
bronchioles; alveoli
cilia; hemoglobin
hemoglobin; capillaries

3.
_______ is the correct sequence of air flow through the respiratory system, which is powered by the _______. (1 point)

Larynx, pharynx, trachea, lungs, bronchi; heart
Pharynx, larynx, trachea, bronchi, alveoli; diaphragm
Trachea, larynx, bronchi, alveoli; brain
Pharynx, larynx, bronchi, alveoli, blood; lungs

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