Which of the following statements about immunity in animals is INCORRECT?
A) Invertebrates have no lymphocytes or truly specific immune responses.
B) Only vertebrates possess phagocytic cells.
C) Some invertebrates have antisomes that can distinguish its own cells from foreign material.
D) Most vertebrates have an immune system with antibodies, a spleen, thymus and T and B cells.
E) Multicellular invertebrates contain phagocytic cells that are able to engulf foreign material.
Correct Answer:
Verified
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A) includes secondary lymphoid organs
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A) infection through
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A)
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A) immune defence is similar to
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A) a series of about 20
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Q33: Innate defence mechanisms are
A) only relevant to
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