Why are some microscopic organisms, such as mites and worms, categorized as invertebrate parasites instead of being categorized as “true” microbes? choose one: a. invertebrate animals have complex organ systems not found in “true” microbes. b. “true” microbes are bacteria and viruses. c. groups classified as “true” microbes do not contain macroscopic forms. d. invertebrate parasites do not cause human diseases.

A. invertebrate animals have complex organ systems not found in true microbes.

Explanation:

Mites and worms are considered as invertebrate parasites as they have complex organ systems like other invertebrates which are simpler in microbes. Invertebrates have complex organ system that is comprised of complex network of veins capillaries and nerves, while in microbes simpler form of such systems are present.

option a and d is the correct answer

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