The nitrogen atoms begin to spread apart and move faster.
The answer is A. Because you large and small intestines is where everything from nutrients to water get absorbed.
Answers
1a
2a
3b
4a
Let me know if you want explanations :)
Bio engineering has provided the ability to regrow tissue for knee or hip joints.
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer huge quantities of carbon into the atmosphere. Extra carbon dioxide is lowering the ocean's pH.
