Answer: cartilage
Explanation: because it is not hard or soft but it still is bone and that is what your ears and nose is made of
Answer:
.I do not have an answer for this
Carbohydrates give energy to the body.
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Answer:
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Answer: During vigorous exercise your breathing rate increases in order to intake more oxygen
Explanation: during vigorous exercise / activity the body needs more oxygen in order to produce energy so your breathing rate increases in order to reach the demand of more intake of oxygen , and your muscles work harder due to an increase in oxygen demand and how much oxygen the muscles take from the blood during vigorous exercises , BUT during rest we have normal rate of oxygen intake because your body is at rest at that moment .
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