The ears i think so it can hear predators
Answer:
Just looking at these answers none of them seem particularly right as sunlight is used as the energy source to make glucose meaning that it is used as energy to bond hydrogen, carbon, and oxygen. The most right answer however i think is that it is converted into chemical energy.
<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>