Answer:
Villi
Explanation:
Villi are folds on the small intestine lining that increase the surface area to facilitate the absorption of nutrients.
It provides a way to test a hypothesis
Explanation:
To remove the salt from the oil, I will add water to dissolve the salt from it.
Oil is an organic molecule that is non-polar
Salt is polar ionic compound
Salt will not dissolve in the oil.
- Take the mixture.
- Add water to it.
- Water and oil are immiscible
- Shake the new heterogeneous mixture vigorously.
- leave to settle.
- Oil will come on top of the water.
- You can skim off the oil layer on top.
- Then heat the water and salt solution.
- This leaves the oil behind.
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Co diffuses 1.25 times the rate of diffusion of c02
