Answer:
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Explanation:
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While photosynthesis requires carbon dioxide and releases oxygen, cellular respirationrequires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells.
The answer is b. Hope this helps :)
Birds, just like humans, have a four-chambered heart.
Answer:
YO YO YO YO
Explanation:
ITS TIME TO DRIVE YOUR CAN YOU WILL TRAVEL VERY FAR LEFT RIGHT FAST AND SLOW START ER UP ITS TIME TO GO