Underwater creatures move by using fins to push water behind them, or using little claws/feet to grab the ocean floor to push them along, or take in water and shoot it out behind them (like the squid), or use little arms to push little ounces of water out of the way or behind them.
If you mean, "are all under water creatures, sea creatures?" then no. The term SEA is for the ocean and there also can be creatures in freshwater. Also some creatures that live in water such as some snakes and sea turtles come out of the water every so often, so they are no total sea/water creatures. Fish are underwater creatures though.
Soil can move by wind, water, and creatures that live underground.
No
if only I am a girl
Marine Biologist
It means that the veterinarian specializes in under water creatures health.
They move with there fins. With the tail.
A marine biologist studies under water creatures.
They move their arms slowly.
Penguins move slow on land but under water they move fast
Kelp and other producers need it to grow.
Basically all that he does!