Human And Ecosystem Health

Question 1

Parasites

Answer 1

Organism that grows, feeds, and is sheltered on or in a different organism that does not contribute to the survival of its host.

Question 2

Virus

Answer 2

Micro-parasite that is smaller than bacteria, not considered and organism, and can only reproduce within a host.

Question 3

Macro-Parasite

Answer 3

Organisms made of several cells that cycles through transmission stages which pass into the external environment.

Question 4

Transmission

Answer 4

Movement of a parasite from host to host.

Question 5

Incubation Period

Answer 5

Interval to time required for the development of a disease.

Question 6

Latent Period

Answer 6

Seemingly inactive period between exposure to an infection and subsequent illness.

Question 7

Parasite Virulence

Answer 7

Capacity of a parasite to cause disease.

Question 8

Host Factors

Answer 8

Immunity, genetics, and nutrition.

Question 9

Agent Factors

Answer 9

Biological, chemical, physical, psychosocial properties, rate of growth, and persistence.

Question 10

Environment