Answer:
you should always wash your hands regularly and avoidance of shaking hands
I don't know the real answer because you didn't attach the choices, but Adenine (A) is always paired with Thymine(T) and Guanine (G) is always paired with Cytosine (C).
the answer is B. The cell would not be able to get enough of the gases and nutrients it needed. I just answered this question on the lesson and it said it was correct. I hope this helps!