Ecology

Question 1

Epidemiology

Answer 1

How a disease infects a population

Question 2

Disease ecology

Answer 2

How the disease lives/ survives through parasite relationships with an environment and it’s interactions with other species

Question 3

Suggest and explain any two reasons for the increase in emerging infectious diseases in recent years

Answer 3

1. Increased unsafe sexual practices

2. Increased pollution carrying Nd viruses which contaminated food, water and land

Question 4

Why does the malaria rate increase when rapid deforestation is occurs?

Answer 4

1. The deforestation creates optimal terrain for puddles, mosquitos breed in puddles… More puddles=> more mosquitos=> more malaria
2. increases the exposure of these puddles to sunlight, optimal conditions for breeding
3. the stumps that are removed cause holes for water to collect and pools to emerge