What is the purpose of deer in our ecosystem besides hunting them? How do they help the earth?

Deer are part of  food chains and webs in nature. They are
herbivores or primary consumers. These ruminants graze on a variety of plants and digest this
material in their four chambered stomach. Carnivores are consumers that eat animal flesh. A deer
is a prey animal that is hunted by carnivores. Wolves can eat deer. However, many wolves have
been driven to almost extinction in most states in the United States. However, it has been shown
that wolves help keep the deer population in check by hunting and feeding on deer, usually older,
younger, weak or sick ones that they can catch. This keeps the population at levels the ecosystem
can support in terms of resources and space. When predators like wolves are removed from the
ecosystem, deer experience a population explosion due to lack of predation. Then, due to
competition for limited resources, the deer experience a die- off due to starvation.  Deer are an
important part of nature. Deer are used for transportation, food(venison) and
clothing.