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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The answer would be a. Energy stored in chemical bonds :)
Anatomical or molecular homologous structures
Answer:
the answer is c. it has both DNA and RNA
<span>Surface of planetary bodies such as the moon , mars or even the earth
A large portion of the items originate from space rocks, which are objects made of different sorts of shake and have existed since the starting point of the nearby planetary group. A little rough or metallic lump of material that movements through space is known as a meteoroid. Small meteoroids (the measure of clean) are regularly alluded to as micrometeoroids or space tidy. These sections may likewise be extra comet flotsam and jetsam, or were shot out in impacts between other close planetary system bodies, such as mars.</span>
