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Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100 $ 100 $100 $100 $200 $200 $200 $200 $300 $300 $300 $300 $400 $400 $400 $400 $500 $500 $500 $500 Topic 1 Topic 2 Topic 3 Topic 4 Topic 5 FINAL ROUND

Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

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Page 1: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Chapter 27 – Worms and Mollusks B

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$200 $200 $200 $200

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Topic 1 Topic 2 Topic 3 Topic 4 Topic 5

FINAL ROUND

Page 2: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$100 Question

Food enters a flatworm’s body cavity through a muscular tube called a

a. flame cell.

b. pharynx.

c. ganglion.

d. coelom.

BACK TO GAME

ANSWER

Page 3: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$100 Answer

Food enters a flatworm’s body cavity through a muscular tube called a

a. flame cell.

b. pharynx.

c. ganglion.

d. coelom.

BACK TO GAME

Page 4: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$200 Question

An adult tapeworm uses its scolex to

a. store sperm.

b. digest food.

c. store fertilized eggs.

d. attach itself to the intestinal wall of its host.

BACK TO GAME

ANSWER

Page 5: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$200 Answer

An adult tapeworm uses its scolex to

a. store sperm.

b. digest food.

c. store fertilized eggs.

d. attach itself to the intestinal wall of its host.

BACK TO GAME

Page 6: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$300 Question

Many flatworms can detect changes in the amount of light in their environment using groups of cells called

a. flame cells.

b. nerve cords.

c. ganglia.

d. eyespots.

BACK TO GAME

ANSWER

Page 7: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$300 Answer

Many flatworms can detect changes in the amount of light in their environment using groups of cells called

a. flame cells.

b. nerve cords.

c. ganglia.

d. eyespots.BACK TO GAME

Page 8: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$400 Question

Most free-living flatworms are

a. parasites.

b. flukes.

c. members of the class Cestoda.

d. hermaphrodites.

BACK TO GAME

ANSWER

Page 9: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$400 Answer

Most free-living flatworms are

a. parasites.

b. flukes.

c. members of the class Cestoda.

d. hermaphrodites.

BACK TO GAME

Page 10: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$500 Question

What conditions could be expected in an area where large numbers of mud-dwelling, filter-feeding, marine annelids are found?

a. abundance of roundworms

b. low bacteria population

c. abundance of algae

d. compacted muddy bottomBACK TO GAME

ANSWER

Page 11: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1:

$500 Answer

What conditions could be expected in an area where large numbers of mud-dwelling, filter-feeding, marine annelids are found?

a. abundance of roundworms

b. low bacteria population

c. abundance of algae

d. compacted muddy bottomBACK TO GAME

Page 12: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$100 Question

The muscular extension of a leech that penetrates the tissue of its host is the

a. septum.

b. radula.

c. proboscis.

d. ganglion.

BACK TO GAME

ANSWER

Page 13: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$100 Answer

The muscular extension of a leech that penetrates the tissue of its host is the

a. septum.

b. radula.

c. proboscis.

d. ganglion.

BACK TO GAME

Page 14: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$200 Question

Which of these animals has a true coelom?

a. filarial worm

b. tapeworm

c. planarian

d. leech

BACK TO GAME

ANSWER

Page 15: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$200 Answer

Which of these animals has a true coelom?

a. filarial worm

b. tapeworm

c. planarian

d. leechBACK TO GAME

Page 16: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$300 Question

Filter-feeding bivalves can be used to monitor the environmental health of a habitat because

a. the bivalves reproduce rapidly in polluted water.

b. the bivalves live near deep-sea vents.

c. some bivalves never get cancer.

d. the bivalves concentrate pollutants and microorganisms in their tissues.

BACK TO GAME

ANSWER

Page 17: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$300 Answer

Filter-feeding bivalves can be used to monitor the environmental health of a habitat because

a. the bivalves reproduce rapidly in polluted water.

b. the bivalves live near deep-sea vents.

c. some bivalves never get cancer.

d. the bivalves concentrate pollutants and microorganisms in their tissues.

BACK TO GAME

Page 18: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$400 Question

In earthworms, inability to produce offspring might be associated with

a. lack of a true coelom.

b. the inability of a worm to fertilize its own eggs.

c. a malfunction of the nephridia.

d. a malfunction of the clitellum.

BACK TO GAME

ANSWER

Page 19: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$400 Answer

In earthworms, inability to produce offspring might be associated with

a. lack of a true coelom.

b. the inability of a worm to fertilize its own eggs.

c. a malfunction of the nephridia.

d. a malfunction of the clitellum

BACK TO GAME

Page 20: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$500 Question

In an earthworm, the dorsal blood vessel functions like a heart because it

a. receives blood from gills.

b. connects to ring vessels.

c. connects to sinuses.

d. contracts and helps pump blood.

BACK TO GAME

ANSWER

Page 21: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 2:

$500 Answer

In an earthworm, the dorsal blood vessel functions like a heart because it

a. receives blood from gills.

b. connects to ring vessels.

c. connects to sinuses.

d. contracts and helps pump blood.BACK TO GAME

Page 22: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$100 Question

The body of an annelid has

a. an external shell.

b. segments.

c. stinging tentacles.

d. a backbone.

BACK TO GAME

ANSWER

Page 23: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$100 Answer

The body of an annelid has

a. an external shell.

b. segments.

c. stinging tentacles.

d. a backbone.

BACK TO GAME

Page 24: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$200 Question

Which characteristic would allow you to differentiate a nautilus from another type of mollusk?

a. It has a shell.

b. It has a single foot.

c. It has a mantle.

d. It has up to 90 tentacles.

BACK TO GAME

ANSWER

Page 25: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$200 Answer

Which characteristic would allow you to differentiate a nautilus from another type of mollusk?

a. It has a shell.

b. It has a single foot.

c. It has a mantle.

d. It has up to 90 tentacles. BACK TO GAME

Page 26: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$300 Question

Some mollusks are detritivores. Their main source of food comes from

a. living animals.

b. decaying plant and animal remains.

c. living plants.

d. bacteria in the muddy bottom.

BACK TO GAME

ANSWER

Page 27: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$300 Answer

Some mollusks are detritivores. Their main source of food comes from

a. living animals.

b. decaying plant and animal remains.

c. living plants.

d. bacteria in the muddy bottom.

BACK TO GAME

Page 28: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$400 Question

The tubelike structure through which water enters and leaves a mollusk’s body is the

a. siphon.

b. sinus.

c. coelom.

d. mantle cavity.BACK TO GAME

ANSWER

Page 29: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$400 Answer

The tubelike structure through which water enters and leaves a mollusk’s body is the

a. siphon.

b. sinus.

c. coelom.

d. mantle cavity.BACK TO GAME

Page 30: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$500 Question

The spade-shaped burrowing structure of one group of mollusks and the tentacles of another group are both modifications of the

a. mantle.

b. shell.

c. visceral mass.

d. foot.BACK TO GAME

ANSWER

Page 31: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 3:

$500 Answer

The spade-shaped burrowing structure of one group of mollusks and the tentacles of another group are both modifications of the

a. mantle.

b. shell.

c. visceral mass.

d. foot.BACK TO GAME

Page 32: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$100 Question

Which of the following correctly pairs the class of mollusks with an example of an animal in that class?

a. Cephalopoda/land slug

b. Bivalvia/nudibranch

c. Cephalopoda/cuttlefish

d. Gastropoda/clam

BACK TO GAME

ANSWER

Page 33: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$100 Answer

Which of the following correctly pairs the class of mollusks with an example of an animal in that class?

a. Cephalopoda/land slug

b. Bivalvia/nudibranch

c. Cephalopoda/cuttlefish

d. Gastropoda/clam

BACK TO GAME

Page 34: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$200 Question

The thin layer of tissue that covers a mollusk’s body is called the

a. mantle.

b. foot.

c. shell.

d. visceral mass.

BACK TO GAME

ANSWER

Page 35: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$200 Answer

The thin layer of tissue that covers a mollusk’s body is called the

a. mantle.

b. foot.

c. shell.

d. visceral mass.

BACK TO GAME

Page 36: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$300 Question

Some flatworms have clusters of nerve cells that control the nervous system. Each cluster is called a(an)

a. brain.

b. eyespot.

c. ganglion.

d. flame cell.BACK TO GAME

ANSWER

Page 37: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$300 Answer

Some flatworms have clusters of nerve cells that control the nervous system. Each cluster is called a(an)

a. brain.

b. eyespot.

c. ganglion.

d. flame cell. BACK TO GAME

Page 38: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$400 Question

Free-living flatworms, most of which live in marine environments or fresh water, are

a. tapeworms.

b. roundworms.

c. turbellarians.

d. flukes.BACK TO GAME

ANSWER

Page 39: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$400 Answer

Free-living flatworms, most of which live in marine environments or fresh water, are

a. tapeworms.

b. roundworms.

c. turbellarians.

d. flukes.BACK TO GAME

Page 40: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$500 Question

An intermediate host is an organism in which a parasite

a. reproduces asexually.

b. reproduces sexually.

c. causes tissue decay.

d. clogs blood vessels.

BACK TO GAME

ANSWER

Page 41: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 4:

$500 Answer

An intermediate host is an organism in which a parasite

a. reproduces asexually.

b. reproduces sexually.

c. causes tissue decay.

d. clogs blood vessels.

BACK TO GAME

Page 42: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$100 Question

Earthworms benefit gardeners because their tunnels provide passageways for

a. leeches.

b. polychaetes.

c. plant roots and water.

d. planarians.

BACK TO GAME

ANSWER

Page 43: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$100 Answer

Earthworms benefit gardeners because their tunnels provide passageways for

a. leeches.

b. polychaetes.

c. plant roots and water.

d. planarians.

BACK TO GAME

Page 44: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$200 Question

Why is an open circulatory system adequate for a bivalve, such as a clam, but not for a cephalopod, such as a squid?

a. Bivalves are largely sedentary, while squids move quickly.

b. Bivalves have relatively high oxygen demands.

c. Cephalopods have relatively low oxygen demands.

d. Bivalves are filter-feeders, and cephalopods are plant eaters.

BACK TO GAME

ANSWER

Page 45: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$200 Answer

Why is an open circulatory system adequate for a bivalve, such as a clam, but not for a cephalopod, such as a squid?

a. Bivalves are largely sedentary, while squids move quickly.

b. Bivalves have relatively high oxygen demands.

c. Cephalopods have relatively low oxygen demands.

d. Bivalves are filter-feeders, and cephalopods are plant eaters.

BACK TO GAME

Page 46: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$300 Question

In a tapeworm, both male and female reproductive organs are contained in each mature

a. scolex.

b. cyst.

c. egg.

d. proglottid.

BACK TO GAME

ANSWER

Page 47: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$300 Answer

In a tapeworm, both male and female reproductive organs are contained in each mature

a. scolex.

b. cyst.

c. egg.

d. proglottid. BACK TO GAME

Page 48: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$400 Question

Roundworms have a digestive system

a. that branches into multiple passages.

b. within a true coelom.

c. with two openings.

d. with one opening.

BACK TO GAME

ANSWER

Page 49: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$400 Answer

Roundworms have a digestive system

a. that branches into multiple passages.

b. within a true coelom.

c. with two openings.

d. with one opening.

BACK TO GAME

Page 50: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$500 Question

A pseudocoelom forms between the mesoderm and

a. endoderm.

b. ectoderm.

c. true coelom.

d. none of the above.BACK TO GAME

ANSWER

Page 51: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 5:

$500 Answer

A pseudocoelom forms between the mesoderm and

a. endoderm.

b. ectoderm.

c. true coelom.

d. none of the above.BACK TO GAME

Page 52: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

FINAL ROUND Question

Question:

a. Choice 1

b. Choice 2

c. Choice 3

d. Choice 4

BACK TO GAME

ANSWER

Page 53: Chapter 27 – Worms and Mollusks B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

FINAL ROUND Answer

Question:

a. Choice 1

b. Choice 2

c. Choice 3 (correct answer)

d. Choice 4

BACK TO GAME