Answer:
C
Explanation:
I hoped it help u out. Ur welcome :)
They do that so when a shark eats something and crumbs come out of its mouth it eats the crumbs
It's basically a wave that moves back and forth at regular speed through matter. because of that it transfers energy through a medium (matter). however the movement of the wave is limited because of this but it can still move over long distances. so because of this these types of waves don't move far from their original point or Equilibrium position. in short think of throwing a pebble into water and seeing the little ripples from it, that's a mechanical wave.
Peritoneum.
Hope this helps!
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