Answer:
yup it can be considered as the physical property like as if the solid is hard it can hurt to so it has the property of being hard and behavior of being hurted
Not a lot besides the fact that they are both mixtures in water, because a solution is a mixture in which the solutes ( solids) dissolve, and suspension is a mixture in which the solutes don't dissolve.
Cytoplasm. This photo should help explain it!
I think it is from the Paleozoic era
Hope this helps