A method or procedure consisting of testing experimenting, and measuring trying to prove a hypothesis.
C as far as I know. Hope this helps!
Answer:
Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.
Explanation: "it is what it is".
The water will move by osmosis from the less-concentrated solution each is on the left to the more-concentrated solution. Hope this helped!
