Answer:
Earth has various layers: the covering, the mantle, the fluid outer core and the inner core.
The Earth's attractive field controls the course and speed at which Earth's internal and external centers turn, despite the fact that they move in inverse ways, new research proposes.
This is the breathing process. Hope this helps.
They help neutralize the acids produced by the stomach.
2 Homologous chromosomes in meiosis, and then replicate into sister chromatids.
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