Question 1

Which is the largest, most diverse group of arthropods?

Accepted Answer

A)   arachnids
B)   millipedes
C)   insects
D)   crustaceans
E)   centipedesF) None of the above
G) B) and C)

Question 2

Which of these is a bivalve?

Accepted Answer

A)   clam
B)   octopus
C)   snail
D)   squid
E)   conchF) A) and B)
G) C) and E)

Question 3

What are the key features of chordates?

Accepted Answer

A)   notochord, dorsal tubular nerve cord, pharyngeal pouches, and a tail
B)   notochord, dorsal tubular nerve cord, water vascular system, and a tail
C)   ventral nerve chord, notochord, pharyngeal pouches, and a tail
D)   notochord, dorsal tubular nerve cord, nerve ring, and a tail
E)   notochord, ventral nerve cord, water vascular system, and a tailF) A) and E)
G) B) and E)

Question 4

Which feature is not found in the lophotrochozoa?

Accepted Answer

A)   As embryos they have two germ layers that develop into their body systems.
B)   Aquatic lifestyle.
C)   Bilaterally symmetrical during some stage of their development.
D)   Use a lophophore as a feeding apparatus.
E)   They are protostomes.F) B) and D)
G) C) and E)

Question 5

An)  _____ is an individual animal that possesses both male and female sex organs.

Accepted Answer

A)   cephalopod
B)   acoelomate
C)   deuterostome
D)   larva
E)   hermaphroditeF) A) and B)
G) C) and D)

Question 6

Which is not a typical adult amphibian characteristic?

Accepted Answer

A)   eyelids
B)   jaws
C)   jointed limbs
D)   lungs
E)   four-chambered heartF) None of the above
G) A) and C)

Question 7

When did modern humans migrate from Africa into Asia and Europe?

Accepted Answer

A)   100,000 year ago
B)   10,000 years ago
C)   200,000 years ago
D)   1.2 million years ago
E)   220,000 years agoF) A) and B)
G) B) and E)

Question 8

The exoskeleton of an arthropod is composed largely of the polysaccharide

Accepted Answer

A)   cellulose.
B)   starch.
C)   chitin.
D)   collagen.
E)   glycogen.F) None of the above
G) A) and B)

Question 9

Which feature is present in cnidarians but lacking in sponges?

Accepted Answer

A)   cellular level of organization
B)   filter feeding
C)   multicellularity
D)   radial symmetry
E)   Cnidarians are classified as animals, while sponges are not animals.F) B) and E)
G) A) and E)

Question 10

Which of these diseases is not caused by roundworms?

Accepted Answer

A)   hookworm infection
B)   pinworm infection
C)   trichinosis
D)   schistosomiasis
E)   elephantiasisF) A) and D)
G) B) and E)

Question 11

An endoparasitic acoelomate with a body consisting of a scolex and a series of proglottids is a

Accepted Answer

A)   fluke.
B)   roundworm.
C)   tapeworm.
D)   hydra.
E)   sponge.F) D) and E)
G) A) and D)

Question 12

Which of these has radial symmetry?

Accepted Answer

A)   human
B)   planarian
C)   jellyfish
D)   roundworm
E)   nudibranchF) B) and D)
G) A) and E)

Question 13

Which is an example of a parazoa?

Accepted Answer

A)   sponges
B)   cnidarians
C)   flatworms
D)   annelids
E)   echinodermsF) A) and D)
G) D) and E)

Question 14

Which of these worms are segmented?

Accepted Answer

A)   annelids
B)   planarians
C)   roundworms
D)   flukes
E)   All worms are segmented.F) A) and C)
G) All of the above

Question 15

Which of these is not a bivalve?

Accepted Answer

A)   barnacle
B)   oyster
C)   clam
D)   mussel
E)   scallopF) A) and E)
G) C) and D)

Question 16

Which of the following is not a hominin?

Accepted Answer

A)   Neandertal
B)   australopithecine
C)   Homo erectus
D)   Cro-Magnon
E)   gorillaF) D) and E)
G) A) and B)

Question 17

Which statement about sponges is correct?

Accepted Answer

A)   Sponges have two germ layers, which give rise to well-organized tissues.
B)   Sponges can only reproduce asexually by fragmentation or budding.
C)   Most sponges have bilateral symmetry.
D)   Sponges belong to the group of invertebrates known as cnidarians.
E)   Sponges are filter feeders.F) All of the above
G) B) and D)

Question 18

In 2004, fossil skeletons of a new Homo species were discovered in Indonesia and named Homo floresiensis. Which factor was the key to classifying this species in the genus Homo?

Accepted Answer

A)   evidence of bipedalism
B)   resemblance to other hominins
C)   humanlike rather than apelike craniums
D)   evidence of being placental mammals
E)   evidence of mosaic evolutionF) A) and E)
G) A) and B)

Question 19

A fungal infection that covers an amphibian's skin can quickly kill the animal. Why can't amphibians tolerate their skin being covered with a foreign substance?

Accepted Answer

A)   Amphibians produce blood in their skin, and become anemic when the skin is covered by fungus.
B)   Amphibians have small lungs and use their skin for gas exchange; they suffocate when the skin is covered with fungal growth.
C)   Amphibians with fungal infections starve when the fungus absorbs all the food stored in their skin.
D)   Because amphibians hear with their skin, those with fungal infections on the skin lose the ability to hear approaching predators.
E)   Since amphibians use their skin for water storage, they dehydrate when an infectious fungus covers the skin and drains it of moisture.F) A) and B)
G) None of the above

Question 20

Which of these is mismatched?

Accepted Answer

A)   cnidarian - nematocyst
B)   planarian - ladderlike nervous system
C)   sponge - collar cell
D)   fluke - body cavity
E)   roundworm - complete digestive tractF) A) and B)
G) A) and E)

Exam 19: The Animals

The exoskeleton of an arthropod is composed largely of the polysaccharide

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Which is an example of a parazoa?

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A fungal infection that covers an amphibian's skin can quickly kill the animal. Why can't amphibians tolerate their skin being covered with a foreign substance?

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Which statement about sponges is correct?

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Which is not a typical adult amphibian characteristic?

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In 2004, fossil skeletons of a new Homo species were discovered in Indonesia and named Homo floresiensis. Which factor was the key to classifying this species in the genus Homo?

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What are the key features of chordates?

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Which of these has radial symmetry?

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Which of these worms are segmented?

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When did modern humans migrate from Africa into Asia and Europe?

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Which of these is not a bivalve?

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An) _____ is an individual animal that possesses both male and female sex organs.

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Which of these is mismatched?

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Which feature is not found in the lophotrochozoa?

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Which is the largest, most diverse group of arthropods?

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Which of these is a bivalve?

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Which feature is present in cnidarians but lacking in sponges?

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An endoparasitic acoelomate with a body consisting of a scolex and a series of proglottids is a

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Which of these diseases is not caused by roundworms?

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Which of the following is not a hominin?

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