I think you mean a vegetarian, Vegetarian's don't eat any meat. :)
There is no known nutrient that is only found in animal products. Although vegetarians and vegans often lack certain nutrients because a balanced diet is more difficult to sustain when animal products are removed, they should theoretically be able to consume any dietary nutrients that omnivorous people do.
People and businesses consume more products and services.
Animals are classified as follows depending on what they eat: If the eat only plants they are herbivores. If they eat only meat they are carnivores. If they eat both plants and meat they are omnivores.
Virtually all the companies that make animal products have to kill animals to make them.
Yes. Eggs are considered as a type of meat. Eggs, Milk and other animal products that do not cause death of an animal are border line - many people who consider themselves vegetarians eat these products. However the foods are comprised of animal protein, hence are carnivore food. Only animals (including people) that eat only vegetable products are fully vegetarian. Such people are rare. They are called "vegans".
People are both producers and consumers. Some people produce products for other citizens to consume. In a biology sense, we are consumers.
In the context of pills, a vegicap is a plant derived capsule that is filled with the vitamin, supplement, or medicine in a powdered or granulated form. The term vegicap is used to differentiate it from capsules that may contain animal products that people may choose not to consume.
Vegans will not eat or use any animal products.
It is not called anything. Anyone will become intoxicated if they consume enough alcohol.
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Some cultures do consume worms and they taste good to them. They are called worms, just in different languages. Most western cultures do not consume worms.
Animal skins, sewn together by needles made from animal bones and threads made from other animal products.