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The some need of the animals in the aquarium that plants can provide is oxygen.
animals need fruit too.
We need to know the territory/country to answer this question.
Animals can mark there territory by urinating (peeing) on it.
Claiming a territory allows animals to save energy by competing less with other animals.
because to protect from the predators and to provide food
Plants and animals are very dependent on each other. Plants provide the necessary food that animals need, while animals supply the reactants of photosynthesis that plants need.
Animals are useful for plants bacause tja e plant needs carbon in night and animals do need
"Lebensraum" was the word most closely related to the need for additional German territory, as it was used by Adolf Hitler to justify territorial expansion to provide space for the growing German population.
To provide animal diversity, most zoos need to collect a variety of animals (that are not endangered) from different parts of the world and from different species.
territory is part of a country ------------------------------------- Territory is an area that is occupied and defended by an animal or group of animals. An animal protects its access to resources by establishing a territory.
Why animals are aggressive towards each other is usually for dominance and like that is their territory not your territory.