Question 1

What characteristics must an animal possess in order to be considered a chordate?

Accepted Answer

At some point during their lif

Question 2

Why are humans classified as chordates? We don't have tails or gills.

Accepted Answer

During development, human embryos have b

Question 3

The high body temperature of birds and mammals is due to:

Accepted Answer

A) their high metabolic rates. 
B) the presence of sweat, scent, and sebaceous glands. 
C) the fur that insulates them. 
D) behaviors like basking in the sun and seeking shade. 
E) the exchange of gases and nutrients via the placenta. 
A) their high metabolic rates. 
B) the presence of sweat, scent, and sebaceous glands. 
C) the fur that insulates them. 
D) behaviors like basking in the sun and seeking shade. 
E) the exchange of gases and nutrients via the placenta.

Question 4

How does marsupial reproduction differ from the reproduction of placental mammals?

Accepted Answer

In marsupials, the young develop in the

Question 5

One adaptation that enables an animal to live successfully on dry land is:

Accepted Answer

A) external fertilization. 
B) a two-chambered heart. 
C) moist skin used for gas exchange. 
D) gills. 
E) development in a shelled egg. 
A) external fertilization. 
B) a two-chambered heart. 
C) moist skin used for gas exchange. 
D) gills. 
E) development in a shelled egg.

Question 6

Which of the following has a ventral nerve cord?

Accepted Answer

A) earthworm 
B) shark 
C) coelacanth 
D) frog 
E) hummingbird 
A) earthworm 
B) shark 
C) coelacanth 
D) frog 
E) hummingbird

Question 7

________ have a dorsal nerve cord.

Accepted Answer

A) Sharks 
B) Bugs 
C) Starfishes 
D) Leeches 
E) Earthworms 
A) Sharks 
B) Bugs 
C) Starfishes 
D) Leeches 
E) Earthworms

Question 8

Which characteristic do birds share with mammals?

Accepted Answer

A) a single ovary in females 
B) mammary glands 
C) a four-chambered heart 
D) sweat glands 
E) hollow bones 
A) a single ovary in females 
B) mammary glands 
C) a four-chambered heart 
D) sweat glands 
E) hollow bones

Question 9

You find a new animal. It is a large, predatory marine vertebrate covered with scales. It has a two-chambered heart and gills, and its skeleton is made of cartilage. You should classify it as:

Accepted Answer

A) Actinopterygii. 
B) Actinistia. 
C) Chondrichthyes. 
D) Amphibia. 
E) Reptilia. 
A) Actinopterygii. 
B) Actinistia. 
C) Chondrichthyes. 
D) Amphibia. 
E) Reptilia.

Question 10

Marsupials are egg-laying mammals. True or False?

Accepted Answer

A) True 
 B)False

Question 11

The notochord:

Accepted Answer

A) forms the nerve cord in an adult. 
B) becomes the digestive system. 
C) is for muscle attachment. 
D) develops from the pharyngeal gill slits. 
E) becomes the brain. 
A) forms the nerve cord in an adult. 
B) becomes the digestive system. 
C) is for muscle attachment. 
D) develops from the pharyngeal gill slits. 
E) becomes the brain.

Question 12

The ________ forms from embryonic and uterine tissues and is the site of exchange between mother and embryo.

Accepted Answer

The answer of The ________ forms from embryonic and uterine...

Question 13

Although they are mammals, monotremes lack:

Accepted Answer

A) ovaries in females. 
B) mammary glands. 
C) a four-chambered heart. 
D) hair. 
E) nipples. 
A) ovaries in females. 
B) mammary glands. 
C) a four-chambered heart. 
D) hair. 
E) nipples.

Question 14

Cartilaginous fishes lack gills in their adult form. True or False?

Accepted Answer

A) True 
 B)False

Question 15

The skeletons of rays and skates are made of:

Accepted Answer

A) muscle. 
B) bone. 
C) cartilage. 
D) chitin. 
E) protein slime. 
A) muscle. 
B) bone. 
C) cartilage. 
D) chitin. 
E) protein slime.

Question 16

Which of the following is essential for birds to maintain their high metabolic rate?

Accepted Answer

A) skin that is used as a respiratory structure 
B) a four-chambered heart, which maximizes oxygen delivery 
C) embryonic development in a shelled amniotic egg 
D) hollow bones, which decrease body mass 
E) extraordinary coordination by a well-developed nervous system 
A) skin that is used as a respiratory structure 
B) a four-chambered heart, which maximizes oxygen delivery 
C) embryonic development in a shelled amniotic egg 
D) hollow bones, which decrease body mass 
E) extraordinary coordination by a well-developed nervous system

Question 17

During embryonic development, the tail in mammals extends past the anus. True or False?

Accepted Answer

A) True 
 B)False

Question 18

________ are the mammals with the greatest number of species.

Accepted Answer

A) Rodents 
B) Primates 
C) Whales 
D) Bats 
E) Marsupials 
A) Rodents 
B) Primates 
C) Whales 
D) Bats 
E) Marsupials

Question 19

Which of the following is present in all chordates?

Accepted Answer

A) a notochord 
B) four limbs 
C) chloroplasts 
D) an external skeleton 
E) a vertebral column 
A) a notochord 
B) four limbs 
C) chloroplasts 
D) an external skeleton 
E) a vertebral column

Question 20

Lungfishes are classified as:

Accepted Answer

A) amphibians. 
B) lobe-finned fishes. 
C) jawless fishes. 
D) ray-finned fishes. 
E) cartilaginous fishes. 
A) amphibians. 
B) lobe-finned fishes. 
C) jawless fishes. 
D) ray-finned fishes. 
E) cartilaginous fishes.

Exam 24: Animal Diversity Ii: Vertebrates

What characteristics must an animal possess in order to be considered a chordate?

Why are humans classified as chordates? We don't have tails or gills.

The high body temperature of birds and mammals is due to:

How does marsupial reproduction differ from the reproduction of placental mammals?

One adaptation that enables an animal to live successfully on dry land is:

Which of the following has a ventral nerve cord?

________ have a dorsal nerve cord.

Which characteristic do birds share with mammals?

You find a new animal. It is a large, predatory marine vertebrate covered with scales. It has a two-chambered heart and gills, and its skeleton is made of cartilage. You should classify it as:

Marsupials are egg-laying mammals. True or False?

The notochord:

The ________ forms from embryonic and uterine tissues and is the site of exchange between mother and embryo.

Although they are mammals, monotremes lack:

Cartilaginous fishes lack gills in their adult form. True or False?

The skeletons of rays and skates are made of:

Which of the following is essential for birds to maintain their high metabolic rate?

During embryonic development, the tail in mammals extends past the anus. True or False?

________ are the mammals with the greatest number of species.

Which of the following is present in all chordates?

Lungfishes are classified as:

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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