Answer:
Carbon Dioxide / Gas
Explanation:
When carbon is in the atmosphere it is usually in the form of molecules of carbon dioxide that is released by living organisms such as humans, plants, animals etc and it is a gas.
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Nucleic acid is the macromolecule that carries code for building our body.
Answer:
fluid.
Explanation:
because there molecules can freely move and take the shape of any container
Answer:
Homo erectus
Explanation:
Homo erectus is believed to be the first creature walk erect and possibly be the first hominin