Biology

Biology, 20.08.2019 17:30, evelyn82

Why oxygen important in your body?

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Biology, 25.06.2019 16:30, jaeybird9

1. how does oxygen travel throughout the human body? put the following statements in the correct order starting with how oxygen enters the body. a. oxygen binds to hemoglobin proteins on red blood cells and supply oxygen to the heart and body b. oxygen travels through the trachea into the bronchi of each lung. c. once in the lung, oxygen moves to the aveoli. d. in the alveoli, the oxygen moves into the bloodstream through capillaries e. oxygen enters the body through respiration via the nose, mouth. 2. which of the following are ways that wastes can be removed in human organisms? select the three correct answers. a. carbon dioxide (gaseous) b. urine (liquid) c. feces (solid) d. oxygen (gaseous) e. storage in central vacuole (liquid)

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Health, 29.06.2019 15:30, ash3246

1. what is the function of the circulatory system? a. control the flow of oxygen in your body b. control the flow of nutrients in you body c. control the flow of blood in your body 2. what is the function of the respiratory system? a. control the flow of oxygen in your body b. control the flow of nutrients in you body c. control the flow of blood in your body 3. what is the function of capillaries? a. carry oxygen-rich blood to veins b. carry oxygen -depleted blood to veins c. pump oxygen through arteries 4. when your are sleeping, your resting heart rate is about1 beat per second a. true b. false 5. oxygen is stored in tiny sponge like sacs called a. aviary b. alveoli c. ravioli

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Chemistry, 23.07.2019 08:00, alexvane78

1. what three important things does the blood do as it is circulating through the body? a. supplies the body with oxygen and nutrients, and picks up carbon dioxide wastes b. supplies the body with carbon dioxide and oxygen c. supplies the body with nitrogen, oxygen, and sugar d. it does nothing at all

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Biology, 04.08.2019 10:50, serenityparish

At the lake the boy holds his breath while swimming under water. after a few seconds, his lungs start to burn and he has the urge surface and gasp for air. which statement below best explains why this happens? select one: a. his body has too much oxygen and needs to get rid of it. b. his body is thirsty and needs moisture from the air. c. his body produces carbon dioxide and needs to exchange it for oxygen d. his body is hot and needs to pant to cool down.

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