There are many environmental factors that affect the life cycle of disease pathogens and their vectors. Which of the following factors can affect disease outbreaks? (select all that apply)
A) Temperature
B) Migration
C) Precipitation
D) Humidity
E) Heat intolerance
Question 2
Three years post exposure to a virulent form of the flu, the same flu strain presents itself to the population. The public health department recognizes that there are members of the population that have not been exposed to the flu strain.
What is the probability that the unexposed population will become ill?
A) The unexposed population will contract the illness.
B) The unexposed population is not likely to contract the illness.
C) The unexposed population will contract the illness and reinfect others.
D) The flu will reach epidemic proportions and both populations will become ill.
The phosphorus cycle.
The Cell Cycle
PET scan of the brain in a patient with Alzheimer’s disease.
Risk Factors of Osteoporosis
Life Cycle Nutrition: Pregnancy through Infancy
Factors Affecting the Affinity of Hb for O2