Answer:
13. is Option J) all of the above
and 14 I'm not completely sure but I think its option D.
Lungs, lung cells, lung tissues
I believe Option C would be your best answer. It says the best way, so either Option C or Option D.
Hope this helps!
~Autumly
Our solar system consists of one smallish star (the sun), eight planets, a few billion a astroids and a few more billion comets.
