8 A and Idk the other one
Answer:
If a solution has a higher concentration of hydronium ions than pure water, it has a pH lower than 7. A solution with a pH lower than 7 is called an acid. As the hydronium ion concentration increases, the pH value decreases. Therefore, the more acidic a solution is, the lower its pH value is.
Explanation:
Answer:
A) Image A represents a peptide hormone that interacts with a receptor, and image B represents a steroid hormone that interacts with the cell's DNA.
Explanation:
B would be the closest thing to wht you are looking for.
the observable universe is estimated to contain 200 billion to two trillion galaxies.
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