Question 1

How long ago did the hominin lineage, the human branch of the evolutionary tree of life, split away from other primate groups?

Accepted Answer

A)  About 6 thousand years ago
B)  About 600 thousand years ago
C)  About 6 million years ago
D)  About 60 million years agoE) C) and D)
F) B) and D)

Question 2

What do hammerhead sharks have in common with goldfish?

Accepted Answer

A)  They both have an operculum.
B)  They both have a lateral line system.
C)  They both have a calcium-enforced skeleton.
D)  They both have a cartilaginous skeleton.E) None of the above
F) All of the above

Question 3

The echinoderms are most closely related to the ________.

Accepted Answer

A)  chordates
B)  flatworms
C)  mollusks
D)  arthropodsE) None of the above
F) B) and C)

Question 4

Being a heterotroph means ________.

Accepted Answer

A)  making your own food from the sun
B)  making your own food from oxygen
C)  obtaining your food by eating other organisms
D)  obtaining your food by photosynthesisE) C) and D)
F) A) and C)

Question 5

Which arthropod subgroup includes the spiders?

Accepted Answer

A)  Arachnids
B)  Crustaceans
C)  Insects
D)  None of the above include spidersE) B) and C)
F) B) and D)

Question 6

What happened during the Cambrian explosion?

Accepted Answer

A)  Many large volcanoes erupted.
B)  There was a large asteroid impact.
C)  There was a rapid diversification of animal forms.
D)  Animals first evolved from single-celled organisms.E) All of the above
F) A) and B)

Question 7

What is the function of a fish's operculum?

Accepted Answer

A)  To detects biofields in the immediate vicinity
B)  To detects movements in the surrounding water
C)  To protects the gills
D)  To provides buoyancyE) A) and C)
F) A) and B)

Question 8

How do bony fish regulate buoyancy?

Accepted Answer

A)  With an air-filled swim bladder
B)  With a protective operculum
C)  By constantly swimming at an upwards angle
D)  Through the calcium in the bones, which makes the skeleton lighter than the waterE) C) and D)
F) A) and C)

Question 9

How many of the animal phyla include single-celled animals?

Accepted Answer

A)  0
B)  1
C)  2
D)  4E) None of the above
F) All of the above

Question 10

Which of the following groups is not a type of mammals?

Accepted Answer

A)  Eutherians
B)  Monotremes
C)  Marsupials
D)  All of the above are types of mammalsE) C) and D)
F) B) and D)

Question 11

Which one of the following is a defining characteristic of animals but not of plants?

Accepted Answer

A)  Animals, but not plants, are autotrophs
B)  Animals, but not plants, are heterotrophs
C)  Animals, but not plants, are eukaryotes
D)  Animals, but not plants, are prokaryotesE) None of the above
F) C) and D)

Question 12

Most chordates are ________.

Accepted Answer

A)  invertebrates
B)  vertebrates
C)  mammals
D)  None of the aboveE) None of the above
F) B) and D)

Question 13

Echinoderms can be best described as ________.

Accepted Answer

A)  eukaryotic heterotrophs with tissue, bilateral symmetry as larva, and a water vascular system
B)  eukaryotic autotrophs that lack tissue, but have bilateral symmetry as larva, and a water vascular system
C)  eukaryotic heterotrophs with tissue, bilateral symmetry as larva, and a blood vascular system
D)  eukaryotic autotrophs with tissue, bilateral symmetry as larva, and a water vascular systemE) A) and B)
F) A) and C)

Question 14

What is a key morphological difference between fish and amphibians?

Accepted Answer

A)  Fish have gills to extract oxygen from water.
B)  Fish have a lateral line system.
C)  Amphibians have strong muscular and skeletal systems to support their body on land.
D)  Amphibians have amniotic eggs.E) B) and D)
F) None of the above

Question 15

What defines radial symmetry?

Accepted Answer

A)  Any plane of symmetry passing through the center of the organism splits it into equal halves.
B)  Only four planes of symmetry passing through the center of the organism splits it into equal halves.
C)  Only one plane of symmetry splits the organism into equal halves.
D)  No planes of symmetry exist; the organism cannot be split into equal halves.E) C) and D)
F) None of the above

Question 16

What characterizes terrestrial tetrapods?

Accepted Answer

A)  Lives on land, has four limbs
B)  Lives on land, has four sets of chromosomes
C)  Lives on land, has four cranial nerves
D)  Lives in the water, has four limbsE) None of the above
F) C) and D)

Question 17

What are the key characteristics of arthropods?

Accepted Answer

A)  Fused bodies, tough exoskeleton, and jointed appendages
B)  Segmented bodies, no exoskeleton, and jointed appendages
C)  Fused bodies, no exoskeleton, and jointed appendages
D)  Segmented bodies, tough exoskeleton, and jointed appendagesE) C) and D)
F) A) and B)

Question 18

Some restaurants serve seafood platters that contain oysters, mussels, and clams.Such platters therefore consist of ________.

Accepted Answer

A)  sponges
B)  cnidarians
C)  gastropods
D)  mollusksE) None of the above
F) A) and C)

Question 19

Which is most closely related to the hagfishes?

Accepted Answer

A)  Cartilaginous fishes
B)  Tunicates
C)  Lampreys
D)  LanceletsE) A) and D)
F) B) and D)

Question 20

Which of the following features are used to identify chordates?

Accepted Answer

A)  A hollow nerve cord
B)  A notochord
C)  A tail during embryonic development
D)  All of the above are features used to identify chordates.E) All of the above
F) None of the above

Exam 10: Biodiversity 3: Animals

The echinoderms are most closely related to the ________.

Correct AnswerverifiedShow Answer

What happened during the Cambrian explosion?

Correct AnswerverifiedShow Answer

What is a key morphological difference between fish and amphibians?

Correct AnswerverifiedShow Answer

What defines radial symmetry?

Correct AnswerverifiedShow Answer

How do bony fish regulate buoyancy?

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What do hammerhead sharks have in common with goldfish?

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What characterizes terrestrial tetrapods?

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What is the function of a fish's operculum?

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Which is most closely related to the hagfishes?

Correct AnswerverifiedShow Answer

How long ago did the hominin lineage, the human branch of the evolutionary tree of life, split away from other primate groups?

Correct AnswerverifiedShow Answer

How many of the animal phyla include single-celled animals?

Correct AnswerverifiedShow Answer

What are the key characteristics of arthropods?

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Echinoderms can be best described as ________.

Correct AnswerverifiedShow Answer

Which of the following features are used to identify chordates?

Correct AnswerverifiedShow Answer

Which of the following groups is not a type of mammals?

Correct AnswerverifiedShow Answer

Some restaurants serve seafood platters that contain oysters, mussels, and clams.Such platters therefore consist of ________.

Correct AnswerverifiedShow Answer

Which arthropod subgroup includes the spiders?

Correct AnswerverifiedShow Answer

Being a heterotroph means ________.

Correct AnswerverifiedShow Answer

Most chordates are ________.

Correct AnswerverifiedShow Answer

Which one of the following is a defining characteristic of animals but not of plants?

Correct AnswerverifiedShow Answer

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