Both whales and clown fish live in oceans. Whales are classified as mammals and clown fish are classified as fish. Which charact
eristic makes whales different from clown fish? A) Clown fish give birth to babies while whales lay eggs. B) Clown fish are invertebrates while whale are vertebrates. C) Clown fish breathe through gills while whales breathe through lungs. D) Clown fish are warm blooded while whales are cold blooded organisms.
I believe studying the hydrosphere would be most important because we haven't explored a good majority of it yet so we need to explore our waters before we explore space
