Answer:
C
Explanation: all the others are considered very important in determining a substance so they would also be important for the level of environmental risk
The liquid should be neutralized.
In the stomach, the pH value is around 2.0, which is because of the hydrochloric acid in the stomach. It can provide a optimum pH for the stomach enzymes.
However in the small intestine, the enzymes there works in a optimum pH of around 8.0, therefore the liquid must be neutralized before going into the small intestine, or else the enzymes in the small intestine will be denatured due to extreme pH.
Neutralization can be done by the sodium hydrogen carbonate, which is a alkali produced in small intestine.
Answer:
Ultraviolet wavelength have the highest energy.
Explanation:
Ultraviolet radiation is an electromagnetic radiation. Its wavelength is 10 nanometers to 400 nanometers. It contribute about 10 percent of sunlight radiation. Wavelength of visible light starts from 400 nanometers so wavelength of Ultraviolet radiation is shorter than visible light but longer than X rays because X rays has a wavelength between 0.01 to 10 nanometers.
Phosphate Backbone is teh dna sugar phosphate bases connect with each other.
Both euchromatin and histone acetylation.