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Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system.

If an atom has no charge, what can we say about the subatomic particles in the atom? a) there will be the same number of protons and neutrons, but a different number of electrons. b) there will be the same number of electrons and neutrons, but a different number of protons. c) there will be the same number of protons and electrons.

If an author wanted to write a book that showed me the humor and the tragedy of life in a distant county he or she would likely write a