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GCSE Biology 2020-2022 OCR Gateway

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Pregunta:

What does the Human Body have acts as a 'First Line of Defence' [Other Words, what are the Non-Specific Defences that don't Target a Specific Pathogen] [2nd Part: Stomach and Blood Vessels]

Autor: eric_galvao



Respuesta:

-Stomach makes HCl, which Kills Pathogens -Blood Vessel, when Damaged, will have Platelets [Tiny Fragments of Cells, that have Different Substances to help the Clot being made, and also has Proteins on the Surface which allows them to Stick Together - also Helping the Clot] the Blood Clump Together to Patch the Damaged Area [Blood Clotting] This will ensure that you don't lose a Lot of Blood, and having Microorganisms enter the Wound.


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