Question 1

Which of these human characteristics is hypothesized to have evolved first?

Accepted Answer

A) enlarged brain 
B) erect posture 
C) language 
D) loss of body hair 
A) enlarged brain 
B) erect posture 
C) language 
D) loss of body hair

Question 2

What does the term "tetrapod" mean?

Accepted Answer

A) egg-laying 
B) living on land 
C) living a double life 
D) having four feet 
A) egg-laying 
B) living on land 
C) living a double life 
D) having four feet

Question 3

Flatworms are similar to cnidarians in that both ________.

Accepted Answer

A) are chordates 
B) have true tissues 
C) lack a gastrovascular cavity 
D) exhibit bilateral symmetry 
A) are chordates 
B) have true tissues 
C) lack a gastrovascular cavity 
D) exhibit bilateral symmetry

Question 4

Nearly all ________ are aquatic.

Accepted Answer

A) crustaceans 
B) arachnids 
C) flatworms 
D) roundworms 
A) crustaceans 
B) arachnids 
C) flatworms 
D) roundworms

Question 5

Insects,such as the grasshopper shown below,have ________.

Accepted Answer

A) eight legs 
B) a two-part body: head and abdomen 
C) a three-part body: head,thorax,and abdomen 
D) no wings 
A) eight legs 
B) a two-part body: head and abdomen 
C) a three-part body: head,thorax,and abdomen 
D) no wings

Question 6

What is the greatest threat to birds today?

Accepted Answer

A) pollution 
B) poaching 
C) habitat loss 
D) the illegal pet trade 
A) pollution 
B) poaching 
C) habitat loss 
D) the illegal pet trade

Question 7

According to the figure,which organism group demonstrates the most advanced body plan in reference to presence of tissue and symmetry?

Accepted Answer

A) sponges 
B) cnidarians 
C) ancestral protists 
D) arthropods 
A) sponges 
B) cnidarians 
C) ancestral protists 
D) arthropods

Question 8

Annelids are most closely related to ________.

Accepted Answer

A) chordates 
B) arthropods 
C) molluscs 
D) echinoderms 
A) chordates 
B) arthropods 
C) molluscs 
D) echinoderms

Question 9

A characteristic of arthropods that has allowed for their great success is the presence of ________.

Accepted Answer

A) bilateral symmetry 
B) an endoskeleton 
C) a brain 
D) specialized segments 
A) bilateral symmetry 
B) an endoskeleton 
C) a brain 
D) specialized segments

Question 10

Rays are a type of ________.

Accepted Answer

A) tunicate 
B) cartilaginous fish 
C) jawless fish 
D) bony fish 
A) tunicate 
B) cartilaginous fish 
C) jawless fish 
D) bony fish

Question 11

Where did humans first appear?

Accepted Answer

A) South America 
B) Africa 
C) Asia 
D) Europe 
A) South America 
B) Africa 
C) Asia 
D) Europe

Question 12

Swim bladders ________.

Accepted Answer

A) contain the gills 
B) are required for fish to exchange gases with the surrounding water 
C) are present in both bony and cartilaginous fishes 
D) help bony fish maintain buoyancy 
A) contain the gills 
B) are required for fish to exchange gases with the surrounding water 
C) are present in both bony and cartilaginous fishes 
D) help bony fish maintain buoyancy

Question 13

All chordates have ________.

Accepted Answer

A) a dorsal,hollow nerve cord and a notochord 
B) a postanal tail and a single opening for the mouth and anus 
C) a cranium and vertebrae 
D) pharyngeal slits and a cranium 
A) a dorsal,hollow nerve cord and a notochord 
B) a postanal tail and a single opening for the mouth and anus 
C) a cranium and vertebrae 
D) pharyngeal slits and a cranium

Question 14

You encounter an insect with small eyes,long sensory antennae,and a long mouthpart shaped like a sword.What can you conclude about the environment in which it lives?

Accepted Answer

A) The environment is dark and has many plants. 
B) The environment is wet and has many other insects. 
C) The environment is hot and has many primates. 
D) The environment is cool and has many reptiles. 
A) The environment is dark and has many plants. 
B) The environment is wet and has many other insects. 
C) The environment is hot and has many primates. 
D) The environment is cool and has many reptiles.

Question 15

According to this evolutionary tree,how would you characterize a new anthropoid specimen discovered and estimated to be approximately 42 million years old?

Accepted Answer

A) one that could be a New World monkey or an Old World monkey 
B) one that is likely a species of lemur 
C) one that is likely a species of tarsier 
D) one that evolved from a new ancestral primate 
A) one that could be a New World monkey or an Old World monkey 
B) one that is likely a species of lemur 
C) one that is likely a species of tarsier 
D) one that evolved from a new ancestral primate

Question 16

Which of these exhibits radial symmetry?

Accepted Answer

A) butterfly 
B) spoon 
C) snowflake 
D) shoe box 
A) butterfly 
B) spoon 
C) snowflake 
D) shoe box

Question 17

You discover an organism that has scaly skin and is aquatic but returns to the land to reproduce.What else would you expect to find in this organism?

Accepted Answer

A) asexual reproduction 
B) amniotic egg 
C) a water vascular system 
D) radial symmetry 
A) asexual reproduction 
B) amniotic egg 
C) a water vascular system 
D) radial symmetry

Question 18

How do sponges differ from all other animals?

Accepted Answer

A) Sponges exhibit radial symmetry. 
B) Sponges are autotrophs. 
C) Sponges lack a true body cavity. 
D) Sponges lack true tissues. 
A) Sponges exhibit radial symmetry. 
B) Sponges are autotrophs. 
C) Sponges lack a true body cavity. 
D) Sponges lack true tissues.

Question 19

All organisms with bilateral symmetry also have ________.

Accepted Answer

A) hard skeletons 
B) bilateral adults 
C) sense organs 
D) an anterior head 
A) hard skeletons 
B) bilateral adults 
C) sense organs 
D) an anterior head

Question 20

Which group of fishes includes a lineage that migrated out of fresh water and adapted to life on land?

Accepted Answer

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

Exam 17: The Evolution of Animals

Which of these human characteristics is hypothesized to have evolved first?

What does the term "tetrapod" mean?

Flatworms are similar to cnidarians in that both ________.

Nearly all ________ are aquatic.

Insects,such as the grasshopper shown below,have ________.

What is the greatest threat to birds today?

According to the figure,which organism group demonstrates the most advanced body plan in reference to presence of tissue and symmetry?

Annelids are most closely related to ________.

A characteristic of arthropods that has allowed for their great success is the presence of ________.

Rays are a type of ________.

Where did humans first appear?

Swim bladders ________.

All chordates have ________.

You encounter an insect with small eyes,long sensory antennae,and a long mouthpart shaped like a sword.What can you conclude about the environment in which it lives?

According to this evolutionary tree,how would you characterize a new anthropoid specimen discovered and estimated to be approximately 42 million years old?

Which of these exhibits radial symmetry?

You discover an organism that has scaly skin and is aquatic but returns to the land to reproduce.What else would you expect to find in this organism?

How do sponges differ from all other animals?

All organisms with bilateral symmetry also have ________.

Which group of fishes includes a lineage that migrated out of fresh water and adapted to life on land?

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy From Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

The Structure and Function of Dna

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Bodys Defenses

Hormones

Reproduction and Development

Nervous,Sensory,and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters