Answer:
The respiratory system.
Explanation:
The circulatory system works with the respiratory system. The circulatory system transports oxygen through the body, while the respiratory system supplies the body with that oxygen.
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Answer:
cold
Explanation:
the ones that flow out from the equator are warm, while the ones that flow towards the equator are cool
A trait that can mask another trait is known as a dominant trait.
Apoenzyme and a non-protein