preventing disease and defences Flashcards
1
Q
what is an epidemic?
A
localised outbreak
2
Q
what is a pandemic?
A
world wide outbreak
3
Q
what is an endemic?
A
something you would find locally
4
Q
what is herd immunity?
A
when a significant proportion of the population is protected against disease
5
Q
3 methods of plant defences
A
waxy cuticle, bark on trees, cellulose in cell walls
6
Q
what do chemical defences do?
A
repel insect vectors and kill invading pathogens
7
Q
4 non-specific methods of defences
A
skin as a barrier, mucous membranes, lysozymes in tears and urine and stomach acid
8
Q
what is an inflammatory response?
A
localised response, resulting in inflammation
