Chapter 2: Mollusks

Question 1

What is an invertebrate with a soft, I segmented body often protected by a hard shell.

Answer 1

Mollusks

Question 2

What organ does a mollusk have they use for crawling, digging or catching prey

Answer 2

A foot

Question 3

What are some examples of a mollusk?

Answer 3

Clams, oysters, scallops, snails, squid

Question 4

What is a this layer of tissue that covers a Mollusks internal organ

Answer 4

Mantle

Question 5

How does a mollusk obtain oxygen

Answer 5

They have gills that remove oxygen from water

Question 6

What type of circulatory system do Mollusks have?

Answer 6

An open circulatory system

Question 7

Does blood always flow in blood vessels in a mollusk

Answer 7

No it does not

Question 8

What type of body structure does a mollusk have?

Answer 8

Bilateral symmetry

Question 9

How many openings does a Mollusks digestive system have?

Answer 9

2

Question 10

Which is the largest mollusk group?

Answer 10

Gastropods

Question 11

Where do Gastropods live?

Answer 11

Oceans, rocky shores, fresh water, and land

Question 12

What is an example of a Gastropods

Answer 12

Snail slug

Question 13

What type of shell can an Gastropods have?

Answer 13

Single exterior shell or no shell

Question 14

How do Gastropods obtain food
Herbivore?
Carnivore?

Answer 14

Herbivore: eats only plants
Carnivore: eat only animals
Others are scavengers

Question 15

Gatropods have flexible ribbon of teeth called

Answer 15

Radula

Question 16

How does a Gastropods move

Answer 16

Slides on a foot

Question 17

A second group of Gastropods is called a bivalve because it has 2 what

Answer 17

Shells held together by hinges or strong muscles

Question 18

What are examples of bivalves?

Answer 18

Oysters or clams

Question 19

How do bivalves obtain food?

Answer 19

They are filter feeders

And most of them are omnivores

Question 20

How does a bivalve move?

Answer 20

Float, swim, or use a foot

Question 21

What protection does a bivalve use

Answer 21

Produces a smooth pearly coat around that irritants that may form a pearl

Question 22

The last group of a Gastropods is called a cephalopod, where are they found?

Answer 22

The ocean

Question 23

The cephalopod is the only mollusk with what type of circulatory system?

Answer 23

Closed

Question 24

What are the types of cephalopod?

Answer 24

Octopus or squid

Question 25

How do Cephalopoda obtain food?

Answer 25

They are carnivores that use tentacles to capture prey.

Question 26

What type of nervous system does a cephalopod have?

Answer 26

Large eyes, excellent vision, large brain, excellent memory

Question 27

How do cephalopod move?

Answer 27

Moves by jet propulsion

Question 28

How many body sections does an insect have?

Answer 28

3, head, thorax, and abdomen

Question 29

How many legs does an insect have?

Answer 29

6

Question 30

How many wings and how many antennas?

Answer 30

1-2 pairs of wings and 1 antenna

Question 31

What is an example of an insect

Answer 31

Moth, grasshopper, cockroach, and bee

Question 32

What do insects eat?

Answer 32

Blood or feces

Question 33

What are the 4 stages of complete metamorphosis in insects?

Answer 33

Egg, larva, pupa, adult

Question 34

What are the three stages of gradual metamorphosis?

Answer 34

Egg, nymph, and adult

Question 35

Ercnioderms have invertebrates with

Answer 35

Endo skeleton

Question 36

Where do Echinoderms live

Answer 36

Salt water

Question 37

What are examples of Echinoderms

Answer 37

Sea cucumbers, sea stars, sand dollars

Question 38

What type of symmetry is an Echinoderms

Answer 38

Radial

Question 39

How do Echinoderms move

Answer 39

Tube feet

Question 40

What type of skeleton does an arthropod have

Answer 40

Exoskeleton

Question 41

How does a arthropod shed its exoskeleton

Answer 41

Molting