Require oxygen to oxidize respiration substrate such as glucose completely to produce carbon dioxide, water, and energy.
Example: plants, fungi, Protista, animals, and some bacteria.
Break down respiration substrate completely such as glucose by using non-organic substances such as nitrate or sulfate, non-oxygen to produce carbon dioxide, water, and energy.
Example: denitrifying bacteria and bacteria Clostridium tetani
Break down respiration substrate such as glucose partially without using oxygen.
Example: plants, yeast, certain bacteria, and musculoskeletal vertebrates.
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