Calcium is few of the main sources for healthy bones, teeth, and muscles.
Most of the metabolic activity in the cell occurs in the Cytoplasm or answer A.
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Answer:
More oxygen is needed to produce more energy, and more carbon dioxide waste must be removed from the body.
Explanation:
Answer:
b
Explanation:
some are the same while others are different (traits)
It's c because Atoms contain three sub-atomic particles called protons, neutrons and electrons. The protons and neutrons are found in the nucleus at the centre of the atom.