Answer:
the answer is b. muscular walls of the arteries
Explanation:
The abrupt breaking of rocks or explosions, fro example an earthquake or Nuclear bomb.
Sycamore trees (Platanus occidentalis) make handsome shade trees for large landscapes.

Answer:
It maintains the shape of the cell
It helps in cell movement
It helps in material exchange
Explanation:
The answer would be B, because they have subcellular organelles.