Question 1

​Which group of organisms has an exoskeleton?

Accepted Answer

A)  ​annelids 
B)  ​arthropods 
C)  ​cnidarians 
D)  ​roundworms 
E)  ​flatworms 
A)  ​annelids 
B)  ​arthropods 
C)  ​cnidarians 
D)  ​roundworms 
E)  ​flatworms

Question 2

​The defining trait of hominins is ____.

Accepted Answer

A)  ​large brain 
B)  ​shoulder that can rotate 360 degrees 
C)  ​bipedalism 
D)  ​extended care of young 
E)  ​nails on fingers and toes 
A)  ​large brain 
B)  ​shoulder that can rotate 360 degrees 
C)  ​bipedalism 
D)  ​extended care of young 
E)  ​nails on fingers and toes

Question 3

​Sea anemones are ____.

Accepted Answer

A)  ​polyp forms of cnidarians 
B)  ​medusa forms of cnidarians 
C)  ​spongiforms of cnidarians 
D)  ​spongiforms of echinoderms 
E)  ​polyp forms of echinoderms 
A)  ​polyp forms of cnidarians 
B)  ​medusa forms of cnidarians 
C)  ​spongiforms of cnidarians 
D)  ​spongiforms of echinoderms 
E)  ​polyp forms of echinoderms

Question 4

​The cause of schistosomiasis is a ____.

Accepted Answer

A)  fluke​ 
B)  ​tapeworm 
C)  ​planarian 
D)  ​leech 
E)  roundworm​ 
A)  fluke​ 
B)  ​tapeworm 
C)  ​planarian 
D)  ​leech 
E)  roundworm​

Question 5

​Our closest extinct relative is ____.

Accepted Answer

A)  ​Homo erectus 
B)  ​Homo habilis 
C)  ​Homo neanderthalensis 
D)  ​Australopithecus afarensis 
E)  ​Australopithecus africanus 
A)  ​Homo erectus 
B)  ​Homo habilis 
C)  ​Homo neanderthalensis 
D)  ​Australopithecus afarensis 
E)  ​Australopithecus africanus

Question 6

​Which geologic periods are known as the "Age of Reptiles"?

Accepted Answer

A)  ​Devonian and Silurian 
B)  ​Jurassic and Cretaceous 
C)  ​Permian and Triassic 
D)  ​Triassic and Jurassic 
E)  ​Carboniferous and Permian 
A)  ​Devonian and Silurian 
B)  ​Jurassic and Cretaceous 
C)  ​Permian and Triassic 
D)  ​Triassic and Jurassic 
E)  ​Carboniferous and Permian

Question 7

Matching
Examine the figure below and match each term with the letter to which it best corresponds.  
-one or more cell types that are organized in a specific pattern and carry out a particular function

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E
F)F 
A) A 
B) B 
C) C 
D) D 
E) E
F)F

Question 8

​Horseshoe crabs have lived in the earth's oceans for ____ years.

Accepted Answer

A)  ​about 4 thousand 
B)  ​close to 400 thousand 
C)  ​less than 40 million 
D)  ​over 400 million 
E)  ​over 4 billion 
A)  ​about 4 thousand 
B)  ​close to 400 thousand 
C)  ​less than 40 million 
D)  ​over 400 million 
E)  ​over 4 billion

Question 9

​A tuna is a ____ fish.

Accepted Answer

A)  ​ray-finned 
B)  ​lobe-finned 
C)  ​cartilaginous 
D)  ​jawless 
E)  ​invertebrate 
A)  ​ray-finned 
B)  ​lobe-finned 
C)  ​cartilaginous 
D)  ​jawless 
E)  ​invertebrate

Question 10

Examine the figure below and match each term with the letter to which it best corresponds.  
-adult

Accepted Answer

A) A 
B) B 
C) C 
A) A 
B) B 
C) C

Question 11

​As an adult, which typical chordate embryonic traits do adult tunicates retain?

Accepted Answer

A)  ​hollow, dorsal nerve cord 
B)  ​notochord 
C)  ​gill slits 
D)  ​tail extending beyond anus 
E)  ​carbohydrate "tunic" 
A)  ​hollow, dorsal nerve cord 
B)  ​notochord 
C)  ​gill slits 
D)  ​tail extending beyond anus 
E)  ​carbohydrate "tunic"

Question 12

​Which chordate has a four-chambered heart, no bladder, no teeth, and lack of a penis in the males?

Accepted Answer

A)  ​a bird 
B)  ​a crocodile 
C)  ​a bat 
D)  ​a frog 
E)  ​a shark 
A)  ​a bird 
B)  ​a crocodile 
C)  ​a bat 
D)  ​a frog 
E)  ​a shark

Question 13

The most diverse of the mammals are the ____.​

Accepted Answer

A)  ​rats 
B)  ​bats 
C)  ​dogs 
D)  ​cats 
E)  ​equines 
A)  ​rats 
B)  ​bats 
C)  ​dogs 
D)  ​cats 
E)  ​equines

Question 14

​Which of the following is a defining trait found in chordate embryos?

Accepted Answer

A)  ​a pseudocoelom 
B)  ​a larval stage 
C)  ​a coelom 
D)  ​limb buds 
E)  gill slits​ 
A)  ​a pseudocoelom 
B)  ​a larval stage 
C)  ​a coelom 
D)  ​limb buds 
E)  gill slits​

Question 15

​A horseshoe crab uses its long extended spine for what purpose?

Accepted Answer

A)  ​defending its territory 
B)  ​digging for clams 
C)  ​fighting for mates 
D)  ​protection from predators 
E)  flipping itself right side up​ 
A)  ​defending its territory 
B)  ​digging for clams 
C)  ​fighting for mates 
D)  ​protection from predators 
E)  flipping itself right side up​

Question 16

Examine the figure below and match each term with the letter to which it best corresponds.  
-​embryo

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G 
A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G

Question 17

​The tube feet of sea stars are used primarily for ____.

Accepted Answer

A)  ​excretion of excess water 
B)  ​locomotion 
C)  ​reproduction 
D)  ​circulation 
E)  sensation​ 
A)  ​excretion of excess water 
B)  ​locomotion 
C)  ​reproduction 
D)  ​circulation 
E)  sensation​

Question 18

Which was an early tetrapod innovation?

Accepted Answer

A)  limbs evolved from dorsal fins 
B)  cartilaginous pectoral girdle 
C)  four-chambered heart 
D)  stereoscopic vision 
E)  inner ear changes to detect airborne sounds 
A)  limbs evolved from dorsal fins 
B)  cartilaginous pectoral girdle 
C)  four-chambered heart 
D)  stereoscopic vision 
E)  inner ear changes to detect airborne sounds

Question 19

​Which is the most recently evolved embryonic tissue in animals?

Accepted Answer

A)  ​mesoderm 
B)  ​ectoderm 
C)  ​endoderm 
D)  ​periderm 
E)  epiderm​ 
A)  ​mesoderm 
B)  ​ectoderm 
C)  ​endoderm 
D)  ​periderm 
E)  epiderm​

Question 20

Which animal lacks a "true" coelom?

Accepted Answer

A)  flatworms only 
B)  annelids only 
C)  roundworms only 
D)  flatworms and annelids 
E)  flatworms and roundworms 
A)  flatworms only 
B)  annelids only 
C)  roundworms only 
D)  flatworms and annelids 
E)  flatworms and roundworms

Exam 16: Animal Evolution

​Which group of organisms has an exoskeleton?

​The defining trait of hominins is ____.

​Sea anemones are ____.

​The cause of schistosomiasis is a ____.

​Our closest extinct relative is ____.

​Which geologic periods are known as the "Age of Reptiles"?

Matching Examine the figure below and match each term with the letter to which it best corresponds. -one or more cell types that are organized in a specific pattern and carry out a particular function

​Horseshoe crabs have lived in the earth's oceans for ____ years.

​A tuna is a ____ fish.

Examine the figure below and match each term with the letter to which it best corresponds. -adult

​As an adult, which typical chordate embryonic traits do adult tunicates retain?

​Which chordate has a four-chambered heart, no bladder, no teeth, and lack of a penis in the males?

The most diverse of the mammals are the ____.​

​Which of the following is a defining trait found in chordate embryos?

​A horseshoe crab uses its long extended spine for what purpose?

Examine the figure below and match each term with the letter to which it best corresponds. -​embryo

​The tube feet of sea stars are used primarily for ____.

Which was an early tetrapod innovation?

​Which is the most recently evolved embryonic tissue in animals?

Which animal lacks a "true" coelom?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

Which group of organisms has an exoskeleton?

The defining trait of hominins is ____.

Sea anemones are ____.

The cause of schistosomiasis is a ____.

Our closest extinct relative is ____.

Which geologic periods are known as the "Age of Reptiles"?

Horseshoe crabs have lived in the earth's oceans for ____ years.

A tuna is a ____ fish.

As an adult, which typical chordate embryonic traits do adult tunicates retain?

Which chordate has a four-chambered heart, no bladder, no teeth, and lack of a penis in the males?

The most diverse of the mammals are the ____.

Which of the following is a defining trait found in chordate embryos?

A horseshoe crab uses its long extended spine for what purpose?

Examine the figure below and match each term with the letter to which it best corresponds. -embryo

The tube feet of sea stars are used primarily for ____.

Which is the most recently evolved embryonic tissue in animals?