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Oxygen.
because they needed food or to find them a better place to live
some animals have to hunt for their food and on the other hand they have to be eaten to make other animals food
Most animals get their food from hunting. Most baby animals get their food from their mum.
animals safety
There is A LOT of food in the world, there is a never ending amount of it as long as animals keep reproducing and plants keep on growing.
No, you see the amount of food needed to supply not only the US but the world is huge. The US is already importing the majority of its food since it can't produce enough food to supply its own people.
Animals are needed all around the world. If we did not have them, there would be no food or drinks. As on the other side of the answer, animals did a big part to create the world. Like oxen and horses, they pulled carts full of materials and tools to make roads and houses. Some animals even did he Eiffel tower by bringing materials. So do you see? Animals are needed for everything in the world. From big to small!
a worm
foodprint is the amount of food wasted by a man
Plants produce both food and oxygen, which are needed by animals.
Depends on what animals you are raising, how many animals need to be fed, and what crops you are raising.
Yes because of the vegetation that animals that are used for human food is far more than would be needed if it was eaten directly by humans.No, because it would then be needed more by humans and by animals to sustain all species, so that would create more impact.
Food, shelter, things needed for an animals survival.
help them to breath oxygenIt gives animals ,energy needed. It oxidizes food and release energy
Most of those animals live in water, the water acts as blood, bringing the needed oxygen and food to the animal's cells.
An unmeasureable amount.