biology module 4 Flashcards
1
Q
types of pathogen
A
bacteria, protoctista, viruses and fungi
2
Q
bacteria
A
tb, ring rot (potatoes and tomatoes)
3
Q
viruses
A
HIV/AIDS, influenza, TMV
4
Q
protoctista
A
malaria, late blight (potato and tomato)
5
Q
fungi
A
black sigatoka (plants) athletes foot (humans
6
Q
means of transmission
A
vectors - ie mosquitos in ref to malaria
spores
climate
social factors
7
Q
plant defences against pathogens
A
- thick waxy cuticle
- production of chemicals that inhibit where pathogen can travel
- cell walls
- callose
8
Q
animal defences against pathogens
A
- skin as primary defence
- blood vessels become more leaky so neutrophils can attack disease
- platelets in terms of blood clotting when there is an open wound
- mucous membranes
- gut
- stomach acid
9
Q
species richness
A
the number of different species populations within a community
10
Q
A
11
Q
A
12
Q
A
