Answer:
d.
Explanation:
You need a small dose of the disease so your body can fight it and become immune.
Factors that involve how each individual's genetic factors react and adjust to the environment are called INTERACTIVE ENVIRONMENTAL FACTORS.
Interactive environmental factors are the factors that are influenced by the environment and also adjust according to the environment. Sometimes the environmental factors might become stressful and the organisms need to evolve according to that stressful environment.
Your answer should end up being 1.5 billion kilometers.<span />
Answer: The answer for me was The Current Doubles as Well
Explanation:
You get dizziness, headache, trouble concentrating and blurred vision