Free Printable Final Review: Worms, Gastropods, Bivalves

Worksheets

Final Review: Worms, Gastropods, Bivalves

Total questions: 28

Worksheet time: 30mins

Name

Class

Date

The inner, sometimes iridescent layer of a mollusc shell is called the ______ layer.

prismatic

nacreous

periostracum

mantle

Molluscs are able to extend their body structures, like tentacles, because of their

opposing muscle groups

tendons & ligaments

muscles attached to bones

hydraulic skeleton

What type of symmetry do Molluscs have?

Asymmetrical

Bilateral

Radial

What is the meaning of Gastropod?

Soft-bodied

Stomach foot

Head-footed

Two-shelled

What structure has teeth and is used by gastropods to eat?

Tentacles

Radula

Mantle

Filter feeder

How do Bivalves eat?

Filter feeders

Radula

Tentacles

Beak

Which part of the Mollusc body contains organs?

Foot

Visceral Mass

Trochophore

Mantle

Which part of the Mollusk body is the tissue covering the body and secretes the shell?

Mantle

Trochophore

Foot

Visceral Mass

The oldest and thickest part of the bivalve shell is called the

periostracum

operculum

umbo

valve

10.

What type of gastropod is pictured?

tulip snail

cowry snail

abalone

nudibranch

11.

Which subclass includes terrestrial snails and slugs?

subclass Pulmonata

subclass Opisthobranchia

subclass Prosobranchia

12.

Which subclass includes marine snails?

subclass Pulmonata

subclass Opisthobranchia

subclass Prosobranchia

13.

What muscle is used by bivalves to close their shells tightly to keep predators out?

longitudinal

retractors

circular

adductor

14.

Where are chemoreceptors of terrestrial snails and slugs?

foot

mantle

shorter stalks on head

longer stalks on head

15.

Structure J is the

foot

mantle

adductor muscle

gills

16.

Structure E is the

umbo

mantle

foot

kidney

17.

What species is / are used for harvesting pearls?

Pinctada margaritaferi

Pinctada mertensi

Helix pomatia

Mytilus edulis

18.

How are pearls formed?

All bivalves form them as part of their lives!

Irritant gets between shell & mantle and is covered with nacre

Pearls are result of retained digestive wastes

Extension of the shell formed for extra protection

19.

What is the dominant side for shell coiling in gastropods?

to the right (dextral)

to the left (sinistral)

both are dominant

20.

Most common roundworm infection in the US is caused by the

pinworm

heartworm

roundworm

whipworm

21.

Which of the following phyla contains mostly parasitic roundworms?

Annelida

Cnidara

Nematoda

Platyhelminthes

22.

Which of the following phyla contains mostly parasitic flatworms?

Annelida

Cnidaria

Nematoda

Platyhelminthes

23.

What class?

Class Cestoda

Class Trematoda

Class Turbellaria

Class Monogenea

24.

What is structure A?

flame cell

pharynx

ganglion

ocelli

25.

What phylum?

Platyhelminthes

Nematoda

Annelida

Echinodermata

26.

Flat worms can reproduce

sexually

asexually

both sexually and asexually

27.

Planaria are members of class

Platyhelminthes

Cestoidea

Turbellaria

Trematoda

28.

Which of these is a common way that parasitic worms can be transmitted?

fecal-oral contact

arthropod vectors

consuming contaminated food or water

all of these are ways you can get worms!

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Final Review: Worms, Gastropods, Bivalves

Total questions: 28

Worksheet time: 30mins

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