Answer: Oxygen
Explanation:
During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.
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C. Australia was covered in ice during a key geologic period.
at the time of coal forming, Australia was closest to the south pole, so it was too cold.
Answer:
Explanation:
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If I had to put my own opinion in this, I could say that it us true. Seeing how most changes to the earth are bringing strong winds and heat.
Perch have paired pectoral and pelvic fins, and two dorsal fins, the first one spiny and the second soft. These two fins can be separate or joined.
