Classification and Generalities of Parasites

Question 1

Linnean Classification Scheme

Answer 1

Kingdom, Phylum, Class, Order, Family, Genus, Species

Question 2

Every parasite, except protozoa, are from which kingdom?

Answer 2

Animalia

Question 3

Dorsoventrally flattened

Answer 3

Platyhelminths

Question 4

Another name for Platyhelminths

Answer 4

Flatworms

Question 5

Flattened, unsegmented, leaf-like shape
Endoparasites that live in the liver, GI tract, lungs, or blood
Most are hermaphroditic
Produce operculated, oval eggs that are found in feces
Require a crustacean as an intermediate host

Answer 5

Trematodes (flukes)

Question 6

All flukes have a _______ life cycle

Answer 6

indirect

Question 7

Most common crustacean for flukes to be found in

Answer 7

Snails

Question 8

Ribbon like flatworms found int the small intestines of their definitive hosts
Absorbs nutrients through their tegument
Require an intermediate host
Produce proglottids and are hermaphroditic
These have an enzyme on their body that doesnt allow the host to digest it
No GI tract or mouth

Answer 8

Cestodes

Question 9

Suction cups that attach to intestines

Answer 9

acetabula

Question 10

“armed tapeworm”;

barbs or hooks in conjunction to suction cups

Answer 10

rostellum

Question 11

Segments of the worm’s body that can pass in stool of the host or on it’s own

Answer 11

proglottids

Question 12

A tapeworm that doesn’t have rostellum is considered

Answer 12

unarmed

Question 13

The head of the tapeworm

Answer 13

scolex

Question 14

Help anchor the worm to the intestines

Answer 14

head and neck

Question 15

Inside every proglottid, there are

Answer 15

Male and Female reproductive organs

Question 16

Closest to the head and neck

Not capable of reproduction

Answer 16

Immature proglottids

Question 17

Toward the middle of the worm

Answer 17

Mature/Intermediate proglottids

Question 18

Pregnant, old proglottids that break off and go back into the environment

Answer 18

Gravid proglottids

Question 19

Intermediate hosts of tape worms include

Answer 19

fleas, lice, rodents, rabbits, squirrels, pigs, moose, elk, deer

Question 20

Another name for Nematodes

Answer 20

Roundworms

Question 21

Named for what they resemble and where they reside

Answer 21

Roundworms

Question 22

Unsegmented, elongated, round on both ends, circular in cross section, and bilaterally symmetrical
May or may not need an intermediate host
Not hermaphroditic

Answer 22

Nematodes

Question 23

Coil and uncoil

Nematodes do this to stay within the body

Answer 23

undulate

Question 24

Largest phylum in the animal kingdom
Ectoparasites
Not all are parasitic
May parasitize the host as adult or juvenile stages

Answer 24

Arthropoda

Question 25

Animals with jointed legs

Answer 25

Arthropoda

Question 26

Can cause anemia because they feed on blood

Answer 26

fleas

Question 27

Phyla is based on locomotory organelles

Answer 27

Protozoa

Question 28

Protozoa is part of what kingdom?

Answer 28

Protista

Question 29

Have pseudopodia (false feet)

Answer 29

amoebas

Question 30

Locomotory organelles are within the cell

Answer 30

apicomplexans

Question 31

Unicellular organisms

They don’t mate, instead reproduce through binary fission

Answer 31

Protozoans