I think the answer is measles vaccine.
Answer: It may not seem like it, but being in love is a somewhat scientific process. Falling in love involves a lot of hormones, which can supercharge your feelings and make them wildly fluctuate. When you're around the person you love, increases in dopamine and norepinephrine.
Explanation:
Answer:
Really? I didnt know that!
Explanation:
cool
Answer : part of the male reproduction system
Explanation: the testes are where the sperm are produced