Exam 3.2

Question 1

Glandular Epidermis

Answer 1

Secretes adhesive and releasing chemicals
Ciliated in free-living groups
Platyhelminthes

Question 2

Syncytial Tegument

Answer 2

many cell nuclei enclosed w/in a single cell membrane
protects parasite from the host’s immune system
Platyhelminthes

Question 3

Radula

Answer 3

tongue-like rasping organ (rows of small teeth)

Mollusca

Question 4

Mantle

Answer 4

Dorsal body wall
secretes shell and encloses body and protects gills/lungs
Mollusca

Question 5

Foot

Answer 5

used for locomotion or attachment

Mollusca

Question 6

Larvae in Mollusca

Answer 6

Trochophore followed by veliger

Question 7

Ecdysis

Answer 7

shed cuticle

Ecdysozoa

Question 8

Ecdysozoa Classes

Answer 8

Nemotoda, Hookworms (Ascaris), Pinworms, Filarial worms, Onychophora, Tardigrada

Question 9

Setae

Answer 9

hair-like projections that stick out from the body
Chitonous
Used as an anchor for locomotion and defense
Annelida

Question 10

Septa

Answer 10

separate body segments

Annelida

Question 11

Errent

Answer 11

Moving

Errantia

Question 12

Parapodia

Answer 12

paired appendages on most segments
used for locomotion and respiration
Errantia

Question 13

Annelida Classes

Answer 13

Errantia, Sedentaria, Clitellata, Hirudinea

Question 14

Clitellum

Answer 14

used in worm reproduction
secretes mucus to hold the mates together
Clitellata

Question 15

Mollusca Classes

Answer 15

Polyplacophora, Monoplacophora, Scaphopoda, Bivalvia, Gastropoda, Cephalopoda

Question 16

Torsion

Answer 16

twisting of body during development

Gastropoda

Question 17

Ctenidia

Answer 17

Gills in Gastropoda

Question 18

Pneumostome

Answer 18

small opening to outside used in respiration

Gastropoda

Question 19

Larvae in Bivalvia

Answer 19

Trocophore larvae then veliger larvae

Question 20

Glochidium

Answer 20

larvae parasite in freshwater clams

Question 21

Captacula

Answer 21

Using foot and tentacles to extend from head to feed on detritus
Scaphopoda

Question 22

Gastropoda species

Answer 22

Snails, slugs, abalone, limpets, whelks, sea slugs, nudibranchs, sea hares, sea butterflies

Question 23

Sister group to Nephrozoa

Answer 23

Acoelomorpha

Question 24

Larvae of Clonorchis

Answer 24

miracidium

Question 25

Scolex

Answer 25

organ of attachment on anterior end

Cestoda

Question 26

Proglottids

Answer 26

individual body segments of Tapeworms