Hydrogen and carbon are the ingredients of all fossil fuels
They supply energy
Answer:
We can tell that extinctions have occurred in the past by looking at fossils in layers of sediments. If the amount of fossils found match you can infer that they are the same organism and they are extinct. If you can't match up the bones with any animal today.
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Answer:
Cells need to do between divisions to make sure that a full set of DNA gets passed on to each daughter cell - The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
Answer:
A. Bones provide structure and support to the body, while muscles move the bones.
Explanation:
