Question 1

Bilaterally symmetrical animals

Accepted Answer

A)   tend to be active and move forward.
B)   tend to exhibit cephalization.
C)   have right and left sides when cut longitudinally.
D)   All of the choices are correct.E) C) and D)
F) B) and D)

Question 2

A person working in a rice paddy in Asia becomes infected with the liver fluke by

Accepted Answer

A)   eating infected snails.
B)   drinking water contaminated with eggs.
C)   eating infected fish that was undercooked or raw.
D)   swimming or wading in infected water, where the cercariae enter the skin.E) A) and B)
F) C) and D)

Question 3

Which of the following features is common among the roundworms as well as the arthropods?

Accepted Answer

A)   Periodically shed their outer covering.
B)   Radial symmetry.
C)   Endoskeleton.
D)   Undergo metamorphosis.
E)   Segmentation is readily apparent.F) A) and D)
G) A) and E)

Question 4

The major insect body parts are

Accepted Answer

A)   head, cephalothorax, and abdomen.
B)   cephalothorax, midsection, and abdomen.
C)   head, thorax, and abdomen.
D)   head, prothorax, and metathorax.
E)   head, cephalothorax, and genitalia.F) None of the above
G) C) and D)

Question 5

Describe the steps required for a sea star to move.

Accepted Answer

1. Water enters the sea star through the madreporite.
2. Water then passes through the stone canal into the ring canal.
3. The ring canal then extends down each arm via the radial canals.
4. From the radial canals, lateral canals extend into the tube feet, each which has an ampulla.
5. Contraction of the ampulla forces water into the tube feet causing it to expand.
6. The tube foot will create a suction to the surface of whatever it touches enabling the sea star to move.

Question 6

Which of these statements is NOT correct about the flatworms? Flatworm(s)

Accepted Answer

A)   embryos are triploblastic.
B)   are deuterostomes.
C)   have a sac body plan with an incomplete gut.
D)   are free-living or parasitic.
E)   are in Phylum Platyhelminthes.F) B) and E)
G) B) and D)

Question 7

Human tapeworm infections occur by

Accepted Answer

A)   eating insufficiently cooked infected pork or beef.
B)   being bitten by a mosquito.
C)   ingesting eggs in contaminated water.
D)   eating freshly peeled fruit.
E)   All of the choices are correct.F) B) and C)
G) None of the above A

Question 8

The lophotrochozoans can be divided into two groups, which include

Accepted Answer

A)   the protostomes and the deuterostomes.
B)   the comb jellies and the cnidarians.
C)   those that reproduce sexually and those that reproduce asexually.
D)   the lophophorates and the trochozoans.E) A) and C)
F) None of the above D

Question 9

Which statement is NOT true about echinoderms?

Accepted Answer

A)   The exoskeleton is made of spiny plates.
B)   Gas exchange occurs through skin gills and tube feet.
C)   Larvae are free-swimming and bilaterally symmetrical.
D)   A water vascular system allows the tube feet to produce suction.
E)   Symmetry is radial in the adult, usually with parts in fives or multiples of five.F) B) and C)
G) B) and E)

Question 10

Identify the organisms that belong to the phylum that are included in the Deuterostomia.

Accepted Answer

A)   octopuses & sea stars
B)   polychaetes and roundworms
C)   sea stars and crocodiles
D)   tapeworms and mollusks
E)   blood flukes and crustaceansF) D) and E)
G) C) and D)

Question 11

The segments of a tapeworm that contain female and male sex organs are called

Accepted Answer

A)   proglottids.
B)   cercariae.
C)   sporocysts.
D)   scolexes.
E)   glycocalyxes.F) B) and C)
G) B) and D)

Question 12

Which of the following is NOT a characteristic of the sponges?

Accepted Answer

A)   If the cells of a sponge are mechanically separated, they will spontaneously reassemble into a complete and functioning sponge.
B)   Sponges have two tissue layers.
C)   Sponges have an osculum, an opening in the upper body.
D)   Sponges are filter feeders.
E)   Sponges can reproduce sexually or asexually.F) None of the above
G) All of the above

Question 13

Which statement concerning body symmetry is not correct?

Accepted Answer

A)   In radial symmetry, two identical halves are obtained regardless of how the animal is sliced longitudinally.
B)   The evolution of bilateral symmetry is accompanied by cephalization.
C)   Asymmetrical animals have no body shape.
D)   Bilaterally symmetric animals are usually sessile.
E)   Radial symmetry is useful because the animals can reach out in all directions.F) All of the above
G) A) and D)

Question 14

Molluscs share a three-part body plan consisting of a

Accepted Answer

A)   scolex, proglottids, and an anus.
B)   corona, stomach, and intestines.
C)   visceral mass, mantle, and foot.
D)   eyespots, digestive system, and nervous system.E) All of the above
F) A) and B)

Question 15

Identify which of the following feature(s)  are found in the cnidarians but not in the comb jellies.

Accepted Answer

A)   They are free swimming invertebrates.
B)   They contain a capsule called a nematocyst.
C)   Produce movement by the beating of cilia.
D)   Much of the body is composed of a jellylike substance called mesoglea.
E)   These species can be found in the marine environment.F) None of the above
G) A) and D)

Question 16

Which method of reproduction is used by members of Phylum Echinodermata?

Accepted Answer

A)   sexual
B)   asexual
C)   budding
D)   fragmentation
E)   Both sexual and asexualF) B) and D)
G) B) and C)

Question 17

Which body structure describes the freshwater hydra?

Accepted Answer

A)   a swimming medusa with the mouth pointing downward
B)   a swimming medusa with the mouth pointing upward
C)   a sessile medusa with the mouth pointing upward
D)   a sessile polyp form with the mouth pointing downward
E)   a freely moving polyp with the mouth pointing upwardF) B) and E)
G) B) and C)

Question 18

Which statement is NOT correct about the roundworms?

Accepted Answer

A)   There are three layers of tissues in the body.
B)   Roundworms have a tube-within-a-tube body plan.
C)   There is an internal body cavity called a pseudocoelom.
D)   Roundworms have a smooth unsegmented outside body wall.
E)   Roundworms are all parasitic.F) C) and E)
G) B) and E)

Question 19

Which statement most accurately describes the colonial flagellate hypothesis?

Accepted Answer

A)   Animals are descended from an ancestor that resembles a spherical colony of flagellated cells.
B)   Both animals and fungi are descended from an ancestor that resembles a spherical colony of flagellated cells.
C)   All animals are descended from an ancestor that resembles a single celled organism that was a flagellated cell.
D)   None of these describe the colonial flagellate hypothesis.E) A) and C)
F) A) and D)

Question 20

A unique species of snail has been discovered in the Negev Desert. At night, these snails use a toothlike rasping organ in their head to scrape up porous limestone; they then digest the algae that lived in the rock pores. This scraping organ is the

Accepted Answer

A)   labial palp.
B)   radula.
C)   mantle.
D)   tentacle.
E)   crop.F) D) and E)
G) B) and D)

Exam 28: Invertebrate Evolution

Bilaterally symmetrical animals

Correct Answer
verified

A person working in a rice paddy in Asia becomes infected with the liver fluke by

Correct Answer
verified

Which of the following features is common among the roundworms as well as the arthropods?

Correct Answer
verified

The major insect body parts are

Correct Answer
verified

Describe the steps required for a sea star to move.

Which of these statements is NOT correct about the flatworms? Flatworm(s)

Correct Answer
verified

Human tapeworm infections occur by

Correct Answer
verified
A

The lophotrochozoans can be divided into two groups, which include

Correct Answer
verified
D

Which statement is NOT true about echinoderms?

Correct Answer
verified

Identify the organisms that belong to the phylum that are included in the Deuterostomia.

Correct Answer
verified

The segments of a tapeworm that contain female and male sex organs are called

Correct Answer
verified

Which of the following is NOT a characteristic of the sponges?

Correct Answer
verified

Which statement concerning body symmetry is not correct?

Correct Answer
verified

Molluscs share a three-part body plan consisting of a

Correct Answer
verified

Identify which of the following feature(s) are found in the cnidarians but not in the comb jellies.

Correct Answer
verified

Which method of reproduction is used by members of Phylum Echinodermata?

Correct Answer
verified

Which body structure describes the freshwater hydra?

Correct Answer
verified

Which statement is NOT correct about the roundworms?

Correct Answer
verified

Which statement most accurately describes the colonial flagellate hypothesis?

Correct Answer
verified

A unique species of snail has been discovered in the Negev Desert. At night, these snails use a toothlike rasping organ in their head to scrape up porous limestone; they then digest the algae that lived in the rock pores. This scraping organ is the

Correct Answer
verified

Exam 28: Invertebrate Evolution

Bilaterally symmetrical animals

Correct AnswerverifiedShow Answer

A person working in a rice paddy in Asia becomes infected with the liver fluke by

Correct AnswerverifiedShow Answer

Which of the following features is common among the roundworms as well as the arthropods?

Correct AnswerverifiedShow Answer

The major insect body parts are

Correct AnswerverifiedShow Answer

Describe the steps required for a sea star to move.

Which of these statements is NOT correct about the flatworms? Flatworm(s)

Correct AnswerverifiedShow Answer

Human tapeworm infections occur by

Correct AnswerverifiedA

The lophotrochozoans can be divided into two groups, which include

Correct AnswerverifiedD

Which statement is NOT true about echinoderms?

Correct AnswerverifiedShow Answer

Identify the organisms that belong to the phylum that are included in the Deuterostomia.

Correct AnswerverifiedShow Answer

The segments of a tapeworm that contain female and male sex organs are called

Correct AnswerverifiedShow Answer

Which of the following is NOT a characteristic of the sponges?

Correct AnswerverifiedShow Answer

Which statement concerning body symmetry is not correct?

Correct AnswerverifiedShow Answer

Molluscs share a three-part body plan consisting of a

Correct AnswerverifiedShow Answer

Identify which of the following feature(s) are found in the cnidarians but not in the comb jellies.

Correct AnswerverifiedShow Answer

Which method of reproduction is used by members of Phylum Echinodermata?

Correct AnswerverifiedShow Answer

Which body structure describes the freshwater hydra?

Correct AnswerverifiedShow Answer

Which statement is NOT correct about the roundworms?

Correct AnswerverifiedShow Answer

Which statement most accurately describes the colonial flagellate hypothesis?

Correct AnswerverifiedShow Answer

A unique species of snail has been discovered in the Negev Desert. At night, these snails use a toothlike rasping organ in their head to scrape up porous limestone; they then digest the algae that lived in the rock pores. This scraping organ is the

Correct AnswerverifiedShow Answer

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A

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D

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