It depends on the animal. Most eat other marine life, or, in the case of plants and some bacteria, they photosynthesize.
well, fish tend to feed on krill, and some other larger fish feed on other smaller fish (eg. the angelfish.) whales feed of krill.
From the things they eat, just like you do.
Most animals
An Marine Biologst works with animals, also where animals are,such as sea world
Animals obtain their energy from the consumption of plants or other animals.
Marine animals breathe through the nose by inhaling and exhaling. :)
Animals that live in the oceran are called marine animals. Animals that live in water that's not the ocean are called freshwater/aquatic animals.
phosphorus is in the soul animals obtain it by eating food
Plant obtain their food from the sun. The process is called photosynthesis. Animals obtain their food from animals or plants.
Most marine animals swallow their food whole. This is because they do not have teeth. But not all marine animals swallow their food whole. Some have small teeth.
Personally i wouldn't kill marine animals, but some people will to get food or to have fun
people make food from farming and obtain food from animals
people make food from farming and obtain food from animals
from the food they eat.
mostly from food.
They hunt for small animals.
They obtain there food by killing animals and gathering fruit and plants
From the plants or animals they eat.
The waste from marine animals is returned to the water in which they live. It forms part of the food chain as it is ingested by the micro-organisms that in turn become food for larger marine life.