They all need light. Those who are too far away from the light rely on heat from towers that give off smoke from the earth's core. (can't remember what the towers are called)
The ocean animals need oxygen to survive.
No. Most plants need light for photosynthesis to take place, whereas animals only need light for ther sight.
well oceans don't really need animals but where would the animals live or stay at they can not stay in one ocean
all animals need water.some dont need as much as others do
starfish
Because it has water animals and animals that need water to survive (We found our answer on Wikepedia)
Well fish poo does.
Plants need light to make food, we need light to see, and without plants animals wouldn't eat, without animals and plants we would die.
A shelter to many types of animals, and food for them.
It doesn't decompose and just stays in the ocean killing animals.
The environment must provide enough air, food and water for the animal. It is also important to have enough light if it is a plant eater as plants need light energy to make food. The type of soil also determines the types of plants and animals that can live there.
Animals get all the energy they need from the food they eat.