One way to prevent this from happening would be, in general, to not go ice skating. She also could have worn knee pads.
I think it’s D, being surrounded with young adults
They divide to make daughter cells.
red blood cells, white blood cells, T cells, Hair cells, sperm cell, egg cell
yes they are
no because a theory typically has some evidence to back it up. A hypothesis however is a statement to help test something. Usually in "If.....Then....." format.
To ask a expert, if she knows the correct answer then she should tell them