The major organ of the circulatory system that causes blood to flow through the body by its pumping action is the heart.
<span>They need to adapt to changes in temperature because under the water it may be warm while the surface is cold and water or moisture because the tide is constantly changing so sometime they may have water while other times they might not.</span>
Answer:
Try reading 'Wobble base paid throry' hope it helps u get it on