Card 1 of 20
A microorganism that causes disease is a [ ].
A
White blood cells.
B
They are swallowed and exposed to stomach acid.
C
It forms a physical barrier preventing pathogens reaching living tissues.
D
A microorganism that causes disease is a pathogen.
Card 1 of 20
5.2.4 Human physical and chemical defences Flashcards
20 flashcards on Edexcel GCSE Biology 5.2.4 Human physical and chemical defences: the key terms, definitions and processes you need to recall for Paper 1 and Paper 2.