Question 1

Which is a characteristic of hagfishes?

Accepted Answer

A)  They have a cranium only.
B)  They have a skeleton composed of cartilage only.
C)  They have both a cranium and skeleton composed of cartilage.
D)  They have vertebrae only.
E)  They have both a cranium and vertebraE.

Question 2

Which characteristic would place an organism outside the annelids?

Accepted Answer

A)  They have a coelom.
B)  They have bilateral symmetry.
C)  No answer is correct.
D)  They are segmenteD.
E)  They have organ systems.

Question 3

How do scientists believe that an asteroid impact in the Yucatan peninsula of Central America caused a worldwide mass extinction?

Accepted Answer

A)  by blocking the sun and inhibiting photosynthesis
B)  by using up all of the oxygen in the atmosphere
C)  most of the animals in the world were in the tropics of Central America
D)  by causing massive floods
E)  by heating up the planet

Question 4

A circulatory system that keeps blood confined within vessels after leaving the heart is a(an)

Accepted Answer

A)  closed circulatory system.
B)  gastrovascular cavity.
C)  open circulatory system.
D)  incomplete circulatory system.
E)  complete circulatory system.

Question 5

Some sponges have spicules made of calcium carbonate.

Accepted Answer

A) True 
 B)False

Question 6

Cnidarians are animals found in ______ environments.

Accepted Answer

A)  land-dwelling
B)  tree-dwelling
C)  desert
D)  All answers are correct.
E)  aquatic

Question 7

The embryonic germ layer of tissue in animals that develops into the digestive tract and organs derived from the digestive tract is the

Accepted Answer

A)  pachyderm.
B)  ectoderm.
C)  mesoderm.
D)  endoderm.
E)  protoderm.

Question 8

Cnidarian bodies are one of two forms.A(n) ______ consists of a sessile stalk with tentacles on one end.A(n) ______ is a free-swimming,bell-shaped,"tentacles-down" body form with a single opening forming the mouth.

Accepted Answer

A)  cephalization;amnion
B)  amnion;medusa
C)  amnion;polyp
D)  polyp;medusa
E)  medusa;polyp

Question 9

If asked on an exam to give a property not found in the echinoderms,which would you write on the exam?

Accepted Answer

A)  They exhibit cephalization.
B)  Adults exhibit radial symmetry.
C)  Larvae exhibit bilateral symmetry.
D)  They have a complete digestive tract.
E)  They have spiny skin.

Question 10

At the beach,you find an animal with a two-part shell,a muscular foot,and a radula.You conclude that you have found a mollusks.

Accepted Answer

A) True 
 B)False

Question 11

Segmentation occurs in annelids,arthropods,and chordates.What can therefore be concluded about segmentation?

Accepted Answer

A)  Segmentation occurs in all animals.
B)  Segmentation occurs only in invertebrates.
C)  Segmentation occurs only in vertebrates.
D)  Segmentation evolved multiple times.
E)  The first animal that gave rise to all other animals was segmented.

Question 12

An animal that maintains its body temperature by using heat generated from its own metabolism is a(an)

Accepted Answer

A)  endotherm.
B)  ectotherm.
C)  thermophile.
D)  mesophile.
E)  amniotE.

Question 13

Which of the following enabled Homo sapiens to develop complex cultures unlike other members of the Homo genus?

Accepted Answer

A)  the ability to walk upright
B)  the development of agriculture
C)  the ability to migrate out of Africa
D)  changes in skin color
E)  the ability to use stone tools

Question 14

Birds are classified as

Accepted Answer

A)  reptiles.
B)  mammals.
C)  amphibians.
D)  fishes.
E)  invertebrate chordates.

Question 15

Which trait,if found in a newly discovered worm-like animal,would convince you that it was not a nematode?

Accepted Answer

A)  They have a complete digestive tract.
B)  They are unsegmented.
C)  They have bilateral symmetry.
D)  They have a coelom.
E)  They exhibit cephalization.

Question 16

If asked for an example of an arthropod and the arthropod trait it exemplified,you could present a centipede as an example of segmentation,since it has many of them.

Accepted Answer

A) True 
 B)False

Question 17

Hominids include

Accepted Answer

A)  humans.
B)  orangutans.
C)  chimpanzees.
D)  gorillas.
E)  All answers are correct.

Question 18

Corals and jellyfish belong to the phylum

Accepted Answer

A)  PoriferA.
B)  Cnidaria.
C)  Platyhelminthes.
D)  Nematoda.
E)  Annelida.

Question 19

What was most key in the transition of fish into amphibians?

Accepted Answer

A)  limbs only
B)  both lungs and limbs
C)  lungs only
D)  fins only
E)  both lungs and fins

Question 20

Which is a characteristic of reptiles?

Accepted Answer

A)  They have gills.
B)  They are endotherms.
C)  They have skeletons composed of cartilage.
D)  They are ectotherms with lungs
E)  They lack a coelom.

Exam 17: Evolution and Diversity of Animals

Cnidarians are animals found in ______ environments.

Correct AnswerverifiedShow Answer

If asked on an exam to give a property not found in the echinoderms,which would you write on the exam?

Correct AnswerverifiedShow Answer

Which is a characteristic of reptiles?

Correct AnswerverifiedShow Answer

Which trait,if found in a newly discovered worm-like animal,would convince you that it was not a nematode?

Correct AnswerverifiedShow Answer

Which of the following enabled Homo sapiens to develop complex cultures unlike other members of the Homo genus?

Correct AnswerverifiedShow Answer

At the beach,you find an animal with a two-part shell,a muscular foot,and a radula.You conclude that you have found a mollusks.

Correct AnswerverifiedShow Answer

Corals and jellyfish belong to the phylum

Correct AnswerverifiedShow Answer

Which is a characteristic of hagfishes?

Correct AnswerverifiedShow Answer

Cnidarian bodies are one of two forms.A(n) ______ consists of a sessile stalk with tentacles on one end.A(n) ______ is a free-swimming,bell-shaped,"tentacles-down" body form with a single opening forming the mouth.

Correct AnswerverifiedShow Answer

The embryonic germ layer of tissue in animals that develops into the digestive tract and organs derived from the digestive tract is the

Correct AnswerverifiedShow Answer

A circulatory system that keeps blood confined within vessels after leaving the heart is a(an)

Correct AnswerverifiedShow Answer

What was most key in the transition of fish into amphibians?

Correct AnswerverifiedShow Answer

Some sponges have spicules made of calcium carbonate.

Correct AnswerverifiedShow Answer

Which characteristic would place an organism outside the annelids?

Correct AnswerverifiedShow Answer

Hominids include

Correct AnswerverifiedShow Answer

How do scientists believe that an asteroid impact in the Yucatan peninsula of Central America caused a worldwide mass extinction?

Correct AnswerverifiedShow Answer

Segmentation occurs in annelids,arthropods,and chordates.What can therefore be concluded about segmentation?

Correct AnswerverifiedShow Answer

If asked for an example of an arthropod and the arthropod trait it exemplified,you could present a centipede as an example of segmentation,since it has many of them.

Correct AnswerverifiedShow Answer

An animal that maintains its body temperature by using heat generated from its own metabolism is a(an)

Correct AnswerverifiedShow Answer

Birds are classified as

Correct AnswerverifiedShow Answer

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Cnidarian bodies are one of two forms.A(n) consists of a sessile stalk with tentacles on one end.A(n) is a free-swimming,bell-shaped,"tentacles-down" body form with a single opening forming the mouth.

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