The answer to your question is <span>B. Natural selection acted on the variation that was present in the population.
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The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.
Answer:
Hypotonic
Explanation:
Tap water contains a lot of solutes and ions that are absent in distilled water. The solution that has more solutes (more dissolved solids) will be the <em>hypertonic</em> solution.
Here, distilled water has no solutes, making it <em>hypotonic</em>.
Well the U.S. consumes about 7.19 Billion barrels of petroleum related products in 2016.
The U.S. currently uses roughly 25% of all of the world's global reserves.
Hey, America likes oil, leave them alone
