B . Excessive commercial fishing
Reason: the other options are good things this is the only bad thing
Answer:
a.Plant cells are the only cell that are part of the cell theory
Explanation:
all cells are part of the cell theory. despite what kind they are
I'm pretty sure that would be the spinal cord. Hope this helps. :)
B. Electromagnetic waves
This is also called light. They can move through empty spaces because do not need a medium and they are the fastest because no matter how far they are they do not get smaller.
