Answer:
Cells are arranged to form different types of TISSUE, which then work to perform specific jobs for the well-being of the animal.
I think A is the answer it makes the most sense to me
Worms don't have lungs. They breathe through their skin.
Hope this helps. :)
Digestion, medulla, heart, and involuntary muscles
Ok I think its small polar molecules but I could be wrong.
