That would be the R-value
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
Answer is A. restriction enzyme
In biology ,Restriction enzyme is known as a scissor.
Glycolysis is the breakdown of metabolic materials into energy and pyruvic acid. it is supported by me because without energy we wouldn't be able to do anything and almost every thing we do requires energy from taking a walk down to the pumping of blood by the heart throughout the body