Question 1

Flatworms are very thin and can exchange materials across their surface.Flatworms lack which of the following anatomical systems?

Accepted Answer

A)  respiratory
B)  nervous
C)  digestive
D)  movement
E)  excretionF) A) and C)
G) A) and D) A

Question 2

Leeches and earthworms belong to the phylum

Accepted Answer

A)  PoriferA.
B)  Mollusca.
C)  Annelida.
D)  Nematoda.
E)  Platyhelminthes.F) A) and B)
G) C) and D)

Question 3

A mollusk with multiple arms for locomotion and grabbing prey is a

Accepted Answer

A)  gastropod.
B)  cephalopod.
C)  bivalve.
D)  chiton.
E)  flukE.F) B) and E)
G) A) and E)

Question 4

Advantages of bipedalism include

Accepted Answer

A)  movement through the treetops and clinging to vines.
B)  the ability to run faster.
C)  freeing of hands to carry objects and ability to use tools.
D)  increased brain size.
E)  All answers are correct.F) A) and E)
G) A) and C)

Question 5

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the

Accepted Answer

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

Question 6

The free-swimming tunicate larva resembles a tadpole.Once it settles headfirst onto a solid surface,the tail and notochord disappear and the nerve cord shrinks to nearly nothing.The adults,which are usually sessile,retain only the pharyngeal slits.Neither adult nor larva is segmented.A tunicate is in which of the following phyla?

Accepted Answer

A)  Mollusca
B)  Annelida
C)  Nematoda
D)  Chordata
E)  EchinodermataF) B) and D)
G) A) and B)

Question 7

The first animals evolved ______;the first chordates evolved ______.

Accepted Answer

A)  on land;in water
B)  in water;on land
C)  in water;in water
D)  from insects;from fishes
E)  second;firstF) C) and D)
G) B) and E)

Question 8

Hominids include

Accepted Answer

A)  humans.
B)  orangutans.
C)  chimpanzees.
D)  gorillas.
E)  All answers are correct.F) A) and E)
G) All of the above

Question 9

An internal membrane in chordates that protects the developing fetus is the notochord.

Accepted Answer

A) True 
 B)False

Question 10

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.F) All of the above
G) A) and E)

Question 11

Animals are very diverse.Which of the following is NOT an animal?

Accepted Answer

A)  penguin
B)  mushroom
C)  shrimp
D)  sponge
E)  spiderF) None of the above
G) A) and D)

Question 12

All cnidarians share the ability to do which of the following?

Accepted Answer

A)  photosynthesize
B)  secrete enzymes to digest food
C)  sting predators and prey
D)  live on land
E)  flyF) D) and E)
G) A) and B)

Question 13

Mollusks that have two-part hinged shells are called bivalves.

Accepted Answer

A) True 
 B)False

Question 14

An open circulatory system keeps blood in specialized vessels as the blood flows throughout the body.

Accepted Answer

A) True 
 B)False

Question 15

In most species,the female frog lays her eggs directly in the water as a male clasps her back and releases sperm.The fertilized eggs hatch as legless,aquatic tadpoles.Most tadpoles feed on algae and have gills.As they mature,tadpoles develop legs and lungs,lose the tail,and acquire carnivorous tastes.The primary function of external gills in aquatic animals is to

Accepted Answer

A)  exchange gases with the water.
B)  transport blood.
C)  relay nerve impulses.
D)  secrete reproductive hormones.
E)  defend against invading microorganisms.F) B) and E)
G) A) and E)

Question 16

A circulatory system that keeps blood confined within vessels after leaving the heart is

Accepted Answer

A)  a closed circulatory system.
B)  a gastrovascular cavity.
C)  an open circulatory system.
D)  an incomplete circulatory system.
E)  a complete circulatory system.F) C) and E)
G) A) and E) A

Question 17

A lancelet is

Accepted Answer

A)  an invertebrate chordate.
B)  a vertebrate.
C)  an echinoderm.
D)  an amphibian.
E)  a fish.F) A) and E)
G) A) and C) A

Question 18

Which of the following is a characteristic of annelids?

Accepted Answer

A)  radial symmetry
B)  cephalization
C)  psuedocoelom
D)  closed circulatory system
E)  incomplete digestive tractF) A) and D)
G) All of the above

Question 19

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an)

Accepted Answer

A)  cranium.
B)  notochord.
C)  amnion.
D)  vertebra.
E)  jaw.F) C) and E)
G) C) and D)

Question 20

Cnidarians are animals found in ______ environments.

Accepted Answer

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

Exam 17: Evolution and Diversity of Animals

Flatworms are very thin and can exchange materials across their surface.Flatworms lack which of the following anatomical systems?

Correct Answer
verified
A

Leeches and earthworms belong to the phylum

Correct Answer
verified

A mollusk with multiple arms for locomotion and grabbing prey is a

Correct Answer
verified

Advantages of bipedalism include

Correct Answer
verified

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the

Correct Answer
verified

Correct Answer
verified

The first animals evolved ;the first chordates evolved .

Correct Answer
verified

Hominids include

Correct Answer
verified

An internal membrane in chordates that protects the developing fetus is the notochord.

Correct Answer
verified

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

Correct Answer
verified

Animals are very diverse.Which of the following is NOT an animal?

Correct Answer
verified

All cnidarians share the ability to do which of the following?

Correct Answer
verified

Mollusks that have two-part hinged shells are called bivalves.

Correct Answer
verified

An open circulatory system keeps blood in specialized vessels as the blood flows throughout the body.

Correct Answer
verified

Correct Answer
verified

A circulatory system that keeps blood confined within vessels after leaving the heart is

Correct Answer
verified
A

A lancelet is

Correct Answer
verified
A

Which of the following is a characteristic of annelids?

Correct Answer
verified

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an)

Correct Answer
verified

Cnidarians are animals found in ______ environments.

Correct Answer
verified

Exam 17: Evolution and Diversity of Animals

Flatworms are very thin and can exchange materials across their surface.Flatworms lack which of the following anatomical systems?

Correct AnswerverifiedA

Leeches and earthworms belong to the phylum

Correct AnswerverifiedShow Answer

A mollusk with multiple arms for locomotion and grabbing prey is a

Correct AnswerverifiedShow Answer

Advantages of bipedalism include

Correct AnswerverifiedShow Answer

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The first animals evolved ______;the first chordates evolved ______.

Correct AnswerverifiedShow Answer

Hominids include

Correct AnswerverifiedShow Answer

An internal membrane in chordates that protects the developing fetus is the notochord.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Animals are very diverse.Which of the following is NOT an animal?

Correct AnswerverifiedShow Answer

All cnidarians share the ability to do which of the following?

Correct AnswerverifiedShow Answer

Mollusks that have two-part hinged shells are called bivalves.

Correct AnswerverifiedShow Answer

An open circulatory system keeps blood in specialized vessels as the blood flows throughout the body.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A circulatory system that keeps blood confined within vessels after leaving the heart is

Correct AnswerverifiedA

A lancelet is

Correct AnswerverifiedA

Which of the following is a characteristic of annelids?

Correct AnswerverifiedShow Answer

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an)

Correct AnswerverifiedShow Answer

Cnidarians are animals found in ______ environments.

Correct AnswerverifiedShow Answer

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The first animals evolved ;the first chordates evolved .

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A

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