Answer:
B. diaphragm
Explanation:
this structure flutters and causes the chest cavity to largen
Answer:
The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.
Explanation:
answer:
it took 17,000 years for CO2 to go from 200 to 300 ppm.
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Answer:
D. They form an ionic compound.
Explanation:
The bonds which are produced between a metal ion and a non-metal ion are termed as ionic bonds.