Host – Parasitic Relationship

Question 1

ENVIRONMENT

Answer 1

✓ Humidity ✓Ambient temp. ✓Spacing
✓ Housing ✓ Moisture ✓ Ventilation
✓ Lighting ✓ Feeds ✓ Pollutants

Question 2

HOST

Answer 2

✓ Age
✓ Sex
✓ Immune resistance
✓ Genetic

Question 3

AGENT

Answer 3

✓ Virulence
✓ Tropism (ability to resist)

Question 4

Ways bacteria cause disease;

Answer 4

✓ Invasion
✓ Produce toxin
✓ Attach and colonize particular cell/organ
✓ Evade host defenses

Question 5

Ways virus cause disease;

Answer 5

✓ Cytolysis
✓ Maintain state of the host
✓ Integrates into the genome of the host

Question 6

Ways parasite cause disease;

Answer 6

✓ Invasion of living tissue
✓ Induce allergies and hypersensitivity
✓ Produce toxins (toxicosis)

Question 7

Commensalism

Answer 7

advantage to one partner but no disadvantage to the other

Question 8

Mutualism

Answer 8

2 organisms live together without disadvantage and harming each other

Question 9

I. Parasitic Relationship ( parasitism)
II. Commensalism
III. Mutualism
IV. Symbiosis