Answer:
When performing a chemical examination of urine a routine reagent strip test for protein is used.
This test is based on the protein error of indicators principle.
Explaination:
The reagents trips are also known as Diagnostic strips which is used for Urinealysis. This strips are firm plastic strips in which there are different types of seperate reagent areas are fixed.They provide the information about acid base balance , urinary tract infection, kidney and liver function and carbohydrate metabolism status. The test is based on the protein error of indicators principle. There is green color formation on the strip under a constant pH which is an indicator of the protein presence.
Answer: Placebo effects.
Explanation:
Placebo effect is also known as Placebo, it is a situation whereby a substance known to have effective performs the wonders of improving the health condition of a patient, this is due to the believe the patient has towards the substance. One of the factors that helps Placebo effect is "Expectation".
A substance is regarded to have placebo effect if it was not designed to have any therapeutic value, Examples of placebo includes disabled water, sugar, sham surgery, inert injection and tablets, etc.
I believe the answer is D. Toothbrushing and flossing can do all of the above.