The slightest change in pH can destroy the substance or organism. The pH of a cell's interior helps regulate the cell's chemical reactions. For example, the pH of blood is 7.4, if blood falls to 6.8 or lower or 8.2 or higher, it results in death.
Answer:
He extracted and observed DNA from white blood cells.
Explanation:
Friedrich Miescher, who is a Swedish Botanist, is the scientist who isolated for the first time. In 1869, Miescher isolated a chemical he called NUCLEIN, which is called Nucleic acid now.
He discovered this so called "NUCLEIN" substance from the nuclei of white blood cells. Nucleic acids are the DNA and RNA we know today, hence, Miescher's discovery was significant to the genetic code as he even agitated for the inclusion of his discovery into inheritance.
You could put salt-crystals outside during different times of the day when the temperature drops or rises.
Answer:
B
Explanation:
Amount of energy decreases as it goes higher up the trophic levels.
<span>The nurse should discuss the complications that the client may experience if he doesn't cooperate with the care plan with him. While clients have the right to make their own choices about their medical care, it is the nurse's responsibility to make sure they make informed ones. She should eventually note down his noncompliance, as well.</span>
