Intro/Terminology

Question 1

What are the three kinds of symbiosis?

Answer 1

Parasitism: one benefits, one harmed
Commensalism: one benefits, one doesn’t care
Mutualism: both benefits

Question 2

What is the equation for control?

Answer 2

C = M + E + T
C: control
M: management
E: epidemiology
T: treatment

Question 3

What is a paratenic host and what happens to the parasite in this host?

Answer 3

The parasite acts as a passenger in the paratenic host.

NO development occurs

Question 4

Why is the definitive host important?

Answer 4

The definitive host is required for the parasite to undergo sexual reproduction

Question 5

What happens to the parasite in an intermediate host?

Answer 5

They may have development, but there is no sexual reproduction in the intermediate host.

Question 6

What kind of parasite is totally dependent on the host? Provide an example

Answer 6

An obligate parasite

Eg. fleas

Question 7

Define facultative parasitism and provide an example.

Answer 7

A parasite which can multiply without a host but under some circumstances can become parasitic.
Eg. blowflies whose maggots normally develop in decaying matter can also develop in wounds of animals

Question 8

Define permanent parasitisim.

Answer 8

A parasite which is on the host at all times.

Eg. lice

Question 9

Define intermittent parasitism

Answer 9

A parasite which visits the host periodically.

Eg. mosquito