Attempt: 1

Attempt: 1

Attempt: 1

Attempt: 1

Attempt: 1

1. Parasites are defined as organisms...

a) unicellular.

b) that feed on other species without giving them any benefit.

c) microscopic.

2. By the number of species that can infect, parasites can be classified into

a) sarcodines and cylophora

b) cestodes, roundworms y tapeworms

c) monogenea y digenea

3. The protozoa are...

a) the ancestors of bacteria

b) animals with several pairs of legs

c) an evolutionary step from unicellular organisms.

4. What are trophozoites?

a) Parasites of the plant kingdom.

b) The form that certain species of parasites take in their proliferative stage.

c) Helminths in their larval stage.

5. Species that belong to the protozoa

a) Entamoeba H.

b) Giardia lamblia

c) All of the above

6. Thorn-headed worms (acantocephalus) are within the group of ...

a) arthropods

b) between cestodes and nematodes

c) helminths

7. Parasites that live outside the host organism are called...

a) opportunistic

b) zoophiles

c) ectoparasites

8. When a disease is typical of a region it is called

a) tropical

b) endemic

c) iatrogenic

9. Fleas, bees, lice, ticks, arachnids, belong to a group of animals called

a) vertebrates

b) arthropods

c) ectoparasites

10. Some parasites can be transmitted by vector species such as:

a) insects (mosquitoes, ticks).

b) mammals (dogs, cats, rats).

c) all of the above

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