The disappearance of the deer indicates A. Intraspecific Competition
Antigens<span> are foreign particles, usually proteins, which are capable of generating an immune response in the body, a property known as immunogenicity. This immune response consists of specific </span>antibodies<span> which are generated by plasma cells as a result of exposure to a specific epitope presented by the </span>antigen<span>.</span>
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Carbon does not stay still in the Earth dynamic. When it is in the atmosphere, carbon is attached to oxygen, changing in dioxide. The carbon dioxide is used by the plants and return to the earth when it dies. The fossil fuels, then, are used by industry and vehicles, what send carbon to the atmosphere and restarts the process.
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