Oxygen.
Yes, sea sponges are alive. They are multicellular animals that live in marine environments. They obtain nutrients by filtering and extracting particles from the water.
animals that do not live in water are called mammals unless if it is a dolphin or turtle. amphibian: vertebrates that live life in and out of the water
Plastic does not dissolve in water, but it can break down into smaller pieces over time, which can be harmful to the environment and marine life.
mainly animals in water. marine means water affiliated.
Trilobites are extinct but they were marine animals.
Some animals that live in water are fish, dolphins, sharks, and jellyfish.
animals need water to keep them hydrated, healthy and alive.
== == materials get into water by animals waste
Marine animals do not break down water molecules into oxygen, just like we don't. They breathe O2 gas that is in solution in the water.
marine or aquatic life
by drinking plenty of water
Fish, sharks, crocodiles, coral many marine animals.