The blood<span>, which is now low in oxygen, is now collected in veins and travels to the right atrium and into the right ventricle. Now pulmonary circulation starts: The right ventricle pumps </span>blood<span> that carries little oxygen into the pulmonary artery, which branches off into smaller and smaller arteries and capillaries.
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About from <span>1.8 to 1.3 million years ago,</span>
Answer:
Stopped on the tracks at the entrance
Explanation:
I took the quiz
