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 Form 2 Biology transport in animals questions and answers

Explain three protective functions of mammalian blood.

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Answer Text:
- Contain platelets whose role is blood clotting when vessels are injured to prevent entry of microorganisms
and excessive loss of blood.
- Contains lymphocytes that produce antibodies that protect the body from infections.
- Contain phagocytes that engulf and digests pathogens through phagocytosis.


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