Question 1

You find an animal that has a flexible cuticle, longitudinal muscles, a complete digestive system, and a false coelom. What is its most likely identity?​

Accepted Answer

A)  ​anematode 
B)  ​acnidarian 
C)  ​aflatworm 
D)  ​an echinoderm 
E)  ​asponge 
A)  ​anematode 
B)  ​acnidarian 
C)  ​aflatworm 
D)  ​an echinoderm 
E)  ​asponge

Question 2

Choose the most appropriate answer for each.​
-roundworms

Accepted Answer

A) ​two pairs of legs per segment 
B) ​Arachnids 
C) ​planarians, flukes, tapeworms 
D) ​Nematodes 
E) ​snails, squids, clams
F)​wheel animals
G)​flagellated collar cells present
H)​jellyfish and corals
I)​crustaceans, ticks, and insects
J)​polychaetes, earthworms, leeches
K)​sea urchins, sea stars 
A) ​two pairs of legs per segment 
B) ​Arachnids 
C) ​planarians, flukes, tapeworms 
D) ​Nematodes 
E) ​snails, squids, clams
F)​wheel animals
G)​flagellated collar cells present
H)​jellyfish and corals
I)​crustaceans, ticks, and insects
J)​polychaetes, earthworms, leeches
K)​sea urchins, sea stars

Question 3

Figure 24.6
​
   
Refer to the illustration above of an adult sponge for questions.
-In the accompanying figure, a cell type that distributes breakdown products of digestion to other cells in the sponge body is identified by the number ____.

Accepted Answer

A)  ​1 
B)  ​2 
C)  ​3 
D)  ​4 
E)  ​5 
A)  ​1 
B)  ​2 
C)  ​3 
D)  ​4 
E)  ​5

Question 4

Respond to the following statement in reference to the five animal phyla listed below.
-Tapeworms are members of this phylum.

Accepted Answer

A) ​Porifera 
B) ​Cnidaria 
C) ​Platyhelminthes 
D) ​Nematoda 
E) ​Annelida​ 
A) ​Porifera 
B) ​Cnidaria 
C) ​Platyhelminthes 
D) ​Nematoda 
E) ​Annelida​

Question 5

Four of the following are echinoderms. Which one is the exception?​

Accepted Answer

A)  ​sea cucumber 
B)  ​sea star 
C)  ​urchin 
D)  ​brittle star 
E)  ​krill 
A)  ​sea cucumber 
B)  ​sea star 
C)  ​urchin 
D)  ​brittle star 
E)  ​krill

Question 6

Four of the following are chelicerates. Which one is the exception?

Accepted Answer

A)  ​Tick 
B)  ​mosquito 
C)  ​spider 
D)  ​horseshoe crab 
E)  ​scorpion 
A)  ​Tick 
B)  ​mosquito 
C)  ​spider 
D)  ​horseshoe crab 
E)  ​scorpion

Question 7

Respond to the following statement in reference to the five animal phyla listed below.
-Members of this group have a brain with nerve cords, have a saclike or branched gut, and lack a circulatory system.

Accepted Answer

A) ​Porifera 
B) ​Cnidaria 
C) ​Platyhelminthes 
D) ​Nematoda 
E) ​Annelida​ 
A) ​Porifera 
B) ​Cnidaria 
C) ​Platyhelminthes 
D) ​Nematoda 
E) ​Annelida​

Question 8

What evidence is there that choanoflagellates were the ancestors to animals?

Accepted Answer

​These protists have many features in co

Question 9

Respond to the following statement in reference to the five animal phyla listed below.
-Trilobites were members of this phylum.

Accepted Answer

A) ​Porifera 
B) ​Cnidaria 
C) ​Platyhelminthes 
D) ​Nematoda 
E) ​Annelida​ 
A) ​Porifera 
B) ​Cnidaria 
C) ​Platyhelminthes 
D) ​Nematoda 
E) ​Annelida​

Question 10

Cells of the outer surface of a sponge obtain nutrients by ____.

Accepted Answer

A)  ​absorbing food that diffuses from the central cavity 
B)  ​capturing food in their microvilli 
C)  ​absorbing food distributed by amoeboid cells 
D)  ​phagocytosing bacteria and other small food items 
E)  ​poisoning small fish that contact them 
A)  ​absorbing food that diffuses from the central cavity 
B)  ​capturing food in their microvilli 
C)  ​absorbing food distributed by amoeboid cells 
D)  ​phagocytosing bacteria and other small food items 
E)  ​poisoning small fish that contact them

Question 11

All animals are ____.

Accepted Answer

A)  ​multicellular, heterotrophic, and diploid 
B)  ​multicellular, heterotrophic, and haploid 
C)  ​unicellular, autotrophic, and diploid 
D)  ​multicellular, autotrophic, and haploid 
E)  ​unicellular, autotrophic, and haploid 
A)  ​multicellular, heterotrophic, and diploid 
B)  ​multicellular, heterotrophic, and haploid 
C)  ​unicellular, autotrophic, and diploid 
D)  ​multicellular, autotrophic, and haploid 
E)  ​unicellular, autotrophic, and haploid

Question 12

Choose the most appropriate answer for each.​
-​millipede

Accepted Answer

A) ​two pairs of legs per segment 
B) ​Arachnids 
C) ​planarians, flukes, tapeworms 
D) ​Nematodes 
E) ​snails, squids, clams
F)​wheel animals
G)​flagellated collar cells present
H)​jellyfish and corals
I)​crustaceans, ticks, and insects
J)​polychaetes, earthworms, leeches
K)​sea urchins, sea stars 
A) ​two pairs of legs per segment 
B) ​Arachnids 
C) ​planarians, flukes, tapeworms 
D) ​Nematodes 
E) ​snails, squids, clams
F)​wheel animals
G)​flagellated collar cells present
H)​jellyfish and corals
I)​crustaceans, ticks, and insects
J)​polychaetes, earthworms, leeches
K)​sea urchins, sea stars

Question 13

Four of the following describe a bilaterally symmetrical animal. Which one is the exception?​

Accepted Answer

A)  ​It has left and right sides. 
B)  ​It usually displays cephalization. 
C)  ​It produces mirror images regardless of the number of "cuts" through the central axis. 
D)  ​It usually has a three layer body plan. 
E)  ​It can be a deuterostome. 
A)  ​It has left and right sides. 
B)  ​It usually displays cephalization. 
C)  ​It produces mirror images regardless of the number of "cuts" through the central axis. 
D)  ​It usually has a three layer body plan. 
E)  ​It can be a deuterostome.

Question 14

Figure 24.4
  
-In the accompanying figure, a(n) ____ has body plan B.

Accepted Answer

A)  ​Pseudocoelomate 
B)  ​eucoelomate 
C)  ​radially symmetrical 
D)  ​echinoderm 
E)  ​acoelomate 
A)  ​Pseudocoelomate 
B)  ​eucoelomate 
C)  ​radially symmetrical 
D)  ​echinoderm 
E)  ​acoelomate

Exam 24: Animal Evolution - the Invertibrates

You find an animal that has a flexible cuticle, longitudinal muscles, a complete digestive system, and a false coelom. What is its most likely identity?​

Choose the most appropriate answer for each.​ -roundworms

Figure 24.6 ​ Refer to the illustration above of an adult sponge for questions. -In the accompanying figure, a cell type that distributes breakdown products of digestion to other cells in the sponge body is identified by the number ____.

Respond to the following statement in reference to the five animal phyla listed below. -Tapeworms are members of this phylum.

Four of the following are echinoderms. Which one is the exception?​

Four of the following are chelicerates. Which one is the exception?

Respond to the following statement in reference to the five animal phyla listed below. -Members of this group have a brain with nerve cords, have a saclike or branched gut, and lack a circulatory system.

What evidence is there that choanoflagellates were the ancestors to animals?

Respond to the following statement in reference to the five animal phyla listed below. -Trilobites were members of this phylum.

Cells of the outer surface of a sponge obtain nutrients by ____.

All animals are ____.

Choose the most appropriate answer for each.​ -​millipede

Four of the following describe a bilaterally symmetrical animal. Which one is the exception?​

Figure 24.4 -In the accompanying figure, a(n) ____ has body plan B.

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

You find an animal that has a flexible cuticle, longitudinal muscles, a complete digestive system, and a false coelom. What is its most likely identity?

Choose the most appropriate answer for each. -roundworms

Figure 24.6 Refer to the illustration above of an adult sponge for questions. -In the accompanying figure, a cell type that distributes breakdown products of digestion to other cells in the sponge body is identified by the number ____.

Four of the following are echinoderms. Which one is the exception?

Choose the most appropriate answer for each. -millipede

Four of the following describe a bilaterally symmetrical animal. Which one is the exception?