Question 1

Which is most closely related to the hagfishes?

Accepted Answer

A) Cartilaginous fishes 
B) Tunicates 
C) Lampreys 
D) Lancelets 
A) Cartilaginous fishes 
B) Tunicates 
C) Lampreys 
D) Lancelets

Question 2

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. 
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.

Question 3

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

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
A) 0 
B) 1 
C) 2 
D) 4

Question 4

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 appendages 
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 appendages

Question 5

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) mollusks 
A) sponges 
B) cnidarians 
C) gastropods 
D) mollusks

Question 6

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 prokaryotes 
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 prokaryotes

Question 7

Most chordates are ________.

Accepted Answer

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

Question 8

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. 
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.

Question 9

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

Question 10

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 water 
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 water

Question 11

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 mammals 
A) Eutherians 
B) Monotremes 
C) Marsupials 
D) All of the above are types of mammals

Question 12

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. 
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.

Question 13

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

Question 14

Which arthropod subgroup includes the spiders?

Accepted Answer

A) Arachnids 
B) Crustaceans 
C) Insects 
D) None of the above include spiders 
A) Arachnids 
B) Crustaceans 
C) Insects 
D) None of the above include spiders

Question 15

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 limbs 
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 limbs

Question 16

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 system 
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 system

Question 17

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. 
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.

Question 18

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 photosynthesis 
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 photosynthesis

Question 19

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. 
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.

Question 20

The echinoderms are most closely related to the ________.

Accepted Answer

A) chordates 
B) flatworms 
C) mollusks 
D) arthropods 
A) chordates 
B) flatworms 
C) mollusks 
D) arthropods

Which is most closely related to the hagfishes?

What happened during the Cambrian explosion?

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

What are the key characteristics of arthropods?

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

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

Most chordates are ________.

What do hammerhead sharks have in common with goldfish?

What is the function of a fish's operculum?

How do bony fish regulate buoyancy?

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

What is a key morphological difference between fish and amphibians?

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

Which arthropod subgroup includes the spiders?

What characterizes terrestrial tetrapods?

Echinoderms can be best described as ________.

Which of the following features are used to identify chordates?

Being a heterotroph means ________.

What defines radial symmetry?

The echinoderms are most closely related to the ________.

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Human Body Systems

Ecology

Biology The Core: Appendix

Filters

Exam 10: Biodiversity 3: Animals

Which is most closely related to the hagfishes?

What happened during the Cambrian explosion?

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

What are the key characteristics of arthropods?

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

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

Most chordates are ________.

What do hammerhead sharks have in common with goldfish?

What is the function of a fish's operculum?

How do bony fish regulate buoyancy?

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

What is a key morphological difference between fish and amphibians?

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

Which arthropod subgroup includes the spiders?

What characterizes terrestrial tetrapods?

Echinoderms can be best described as ________.

Which of the following features are used to identify chordates?

Being a heterotroph means ________.

What defines radial symmetry?

The echinoderms are most closely related to the ________.

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Human Body Systems

Ecology

Biology The Core: Appendix

Filters