NEW
Font size
WorksheetsEnv. Sci. Chapter 20 Section 2 Quiz
Total questions: 10
Worksheet time: 5mins
organism in or on which a disease causing organism lives
pathogen
host
vector
cross-species transfer
previously unknown cause of disease
pathogen
host
vector
emerging virus
transmits a disease-causing organism to people
pathogen
host
vector
emerging virus
organism that causes disease
pathogen
host
vector
emerging virus
movement from one kind of organism to another
host
vector
pathogen
cross-species transfer
Pollution alters the environment, encouraging pathogens to breed. Which disease is caused indirectly by pollution?
AIDS
Ebola
Cholera
Influenza
Most infectious diseases are transmitted through
water
air
soil
people
What environmental change may increase the areas where malaria occurs?
draining wetlands
soil erosion
destroying habitats
climate change
Which of the following is an environmental change that may result in more pathogens making a cross-species transfer to humans?
polluting water
soil erosion
destroying habitats
climate change
Human immunodeficiency virus is considered an emerging virus because it
had been controlled until recently.
was previously unknown.
developed from two other viruses.
has become resistant to antibiotics.
