Mollusks

Question 1

What phylum are mollusks?

Answer 1

Mollusca

Question 2

What kingdom are mollusks?

Answer 2

Animalia

Question 3

What is a class Gastropoda ex)?

Answer 3

Snail

Question 4

What is a class pelecypoda ex)?

Answer 4

Clam

Question 5

What is an ex) of class cephalopods?

Answer 5

Squid

Question 6

Describe the body of a mollusk?

Answer 6

Soft
Unsegmented body

Question 7

Where is the Mantle?

Answer 7

Grows from ventral wall

Question 8

What does the mantle do?

Answer 8

Covers and protects visceral mass
Secretes the shell

Question 9

Visceral mass

Answer 9

Digestive, circulatory, respiratory, reproductive organs

Question 10

Muscular foot?

Answer 10

Used for locomotion
Highly adapted

Question 11

What is the epidermis covered with?

Answer 11

Mucus glands and cilia

Question 12

What kind (broad) of organs does a mollusks have???

Answer 12

Well developed sense organs

Question 13

Radula

Answer 13

Rasping tongue
Scrapes food

Question 14

Mantle cavity

Answer 14

Space between mantel and visceral mass

Question 15

How many shell layers do mollusks have?

Answer 15

3 layers

Question 16

Periostracum

Answer 16

Outer and protective layer

Question 17

Prismatic

Answer 17

Middle layer and thickest part

Question 18

Nacreous

Answer 18

Inner layer
Secretes the mother of pearl

Question 19

Class Gastropoda aka?

Answer 19

Stomach foot
Univalves

Question 20

Univalves

Answer 20

One shell

Question 21

How do Gastropoda move?

Answer 21

Glide on flat foot

Question 22

Gastropoda shell?

Answer 22

One or no shell (univalve)

Question 23

Where do Gastropoda live?

Answer 23

Aquatic and terrestrial

Question 24

How do Gastropoda eat?

Answer 24

All eat using radula
( herbivores, scavengers, predators)

Question 25

Torsion

Answer 25

Mantle cavity twists due to shell & results in fouling

Question 26

Fouling

Answer 26

Wastes wash over gills cause anus to be above head

Question 27

Coiling

Answer 27

Spiraling and winding of body allows Gastropods to hold shell off to the side so they are not crushed by the weight of the shell

Question 28

Monoecious Gastropoda

Answer 28

Exchange spermatophores

Question 29

Spermatophores

Answer 29

Sperm packets

Question 30

Dioecious Gastropodas

Answer 30

Perform many courtship ritual forms

Question 31

Gastropoda examples

Answer 31

Snails
Slugs
Nudibranchs
Conchs
Cone shells

Question 32

Class pelecypoda examples

Answer 32

Clams
Scallops
Mussels
Geoduck

Question 33

Pelecypods basics

Answer 33

Bivalves
Hatchet food=diggers

Question 34

Hinge ligament of pelecypoda

Answer 34

Two shells (bivalves) held together

Question 35

Hatchet food

Answer 35

Shovel shaped foot used for digging into sand, very limited locomotion

Question 36

What type of feeders are pelecypoda?

Answer 36

Suspension feeders

Question 37

Suspension feeders

Answer 37

No radula
No cephalization

Question 38

What does the cola on gills create in class pelecypoda?

Answer 38

A current that draws food and water into incurrrent siphon

Question 39

What type of foot does class cephalodpod have?

Answer 39

Head-foot

Question 40

Class cephalopod are..

Answer 40

All marine
All are active predators
Foot is modified into tentacles that are concentrated at the anterior end

Question 41

What is up with class cephalopods shell?

Answer 41

They have no shell or greatly reduced internal shell

Question 42

Cephalopods examples

Answer 42

Squids
Octopus
Cuttlefish
Chambered nautilus

Question 43

What is the squid’s pen function?(vestigial internal shell)

Answer 43

To support muscular tissues and organs