A) anaphase. It's when the pairs of chromosomes are pulled apart by spindle fibers.
A strong acid has a pH of 0.
1. 50, 10grams passed through barrier to equalize
2. 50, same as 1
3. 40, can’t pass through barrier
4. 60, same as 3
5. water level rises in side2, lowers in side 1 because 10 grams of liquid passed through barrier
I believe that it would be a solar system. I hope this helps!:)