D. Estuaries
Estuaries are a place where fresh and salt water mix.
I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!
<span>A) research the information using several sources before taking the supplement.</span>
Because some of them are immune and only works for one thing in the system
Answer:
A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable. This means that researchers must be able to carry out investi- gations and gather evidence that will either support or disprove the hypothesis.
Explanation:
