Question 1

The majority of crustaceans live in ____.

Accepted Answer

A)  ​bodies of freshwater 
B)  ​tropical rain forests 
C)  ​marine habitats 
D)  ​Wetlands 
E)  ​Grasslands 
A)  ​bodies of freshwater 
B)  ​tropical rain forests 
C)  ​marine habitats 
D)  ​Wetlands 
E)  ​Grasslands C

Question 2

Why might tardigrades make good organisms for space flight?

Accepted Answer

Tardigrades have traits to make them very good candidates. For one, they can go dormant for years which could be beneficial for the flight. Second, they can tolerate extreme hot and cold which could be experienced on the journey. Third, they are very small so they would not need a large craft.

Question 3

Figure 24.10
  
-In the accompanying figure, an asexually reproducing individual is indicated by _____.

Accepted Answer

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

Question 4

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

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 5

The ____ is the first phylum with three germ layers.

Accepted Answer

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

Question 6

You stumble upon an unidentified arthropod with no antennae and eight legs. This organism is likely closely related to _____.

Accepted Answer

A)  ​grasshoppers 
B)  ​ticks 
C)  ​crayfish 
D)  ​millipedes 
E)  ​trilobites 
A)  ​grasshoppers 
B)  ​ticks 
C)  ​crayfish 
D)  ​millipedes 
E)  ​trilobites

Question 7

Choose the most appropriate answer for each.​
-flatworms

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 8

Rotifers take their name from ____.

Accepted Answer

A)  ​their tumbling movements through the water 
B)  ​actions of cilia on their head 
C)  ​their radial symmetry 
D)  ​their elaborate digestive system 
E)  ​rotational action around the central body axis 
A)  ​their tumbling movements through the water 
B)  ​actions of cilia on their head 
C)  ​their radial symmetry 
D)  ​their elaborate digestive system 
E)  ​rotational action around the central body axis

Question 9

In __________, an anus forms first.

Accepted Answer

The answer of In __________, an anus forms first....

Question 10

Respond to the following statement in reference to the five animal phyla listed below.
-Members of this phylum have a brain with a ventral nerve cord, a complete gut, and a circulatory system that is usually closed.

Accepted Answer

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

Question 11

Some animals have no body symmetry or have __________ symmetry like spokes on a wheel.

Accepted Answer

The answer of Some animals have no body symmetry or...

Question 12

Respond to the following statement in reference to the five animal phyla listed below.
-​Although most members are enclosed by hardened shells, this phylum name literally means "soft body."

Accepted Answer

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

Question 13

You find a wormlike arthropod with a flattened body and carnivorous eating habits. It would most likely be identified as a ____.

Accepted Answer

A)  ​Crustacean 
B)  ​Millipede 
C)  ​Spider 
D)  ​Trilobite 
E)  ​Centipede 
A)  ​Crustacean 
B)  ​Millipede 
C)  ​Spider 
D)  ​Trilobite 
E)  ​Centipede

Question 14

During extended periods of dehydration, tardigrades ____.

Accepted Answer

A)  ​enter suspended animation 
B)  ​migrate to the soil subsurface 
C)  ​enter small ponds and lakes 
D)  ​climb inside a plant leaf and form cysts 
E)  ​replace the water in their cells with salt 
A)  ​enter suspended animation 
B)  ​migrate to the soil subsurface 
C)  ​enter small ponds and lakes 
D)  ​climb inside a plant leaf and form cysts 
E)  ​replace the water in their cells with salt

Question 15

The animal gut cavity may be a fully lined coelom or a partially lined __________.

Accepted Answer

The answer of The animal gut cavity may be a...

Question 16

__________ are multicelled heterotrophs without cell walls.

Accepted Answer

The answer of __________ are multicelled heterotrophs without cell walls....

Question 17

Respond to the following statement in reference to the five animal phyla listed below.
-​"Wheel animals" are in 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 18

__________, such as jellyfishes, corals, and sea anemones, are radially symmetrical.

Accepted Answer

The answer of __________, such as jellyfishes, corals, and sea...

Question 19

When arthropods molt, they may change in four of the following ways. Which one is the exception?

Accepted Answer

A)  ​body form and maturity 
B)  ​Sex 
C)  ​body size 
D)  ​eating habits 
E)  ​sensory structures 
A)  ​body form and maturity 
B)  ​Sex 
C)  ​body size 
D)  ​eating habits 
E)  ​sensory structures

Question 20

The ____ are the most diverse animal group.

Accepted Answer

A)  ​Vertebrates 
B)  ​Insects 
C)  ​Humans 
D)  ​Protozoans 
E)  ​Mollusks 
A)  ​Vertebrates 
B)  ​Insects 
C)  ​Humans 
D)  ​Protozoans 
E)  ​Mollusks

Exam 24: Animal Evolution - the Invertibrates

The majority of crustaceans live in ____.

Why might tardigrades make good organisms for space flight?

Figure 24.10 -In the accompanying figure, an asexually reproducing individual is indicated by _____.

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

The ____ is the first phylum with three germ layers.

You stumble upon an unidentified arthropod with no antennae and eight legs. This organism is likely closely related to _____.

Choose the most appropriate answer for each.​ -flatworms

Rotifers take their name from ____.

In __________, an anus forms first.

Respond to the following statement in reference to the five animal phyla listed below. -Members of this phylum have a brain with a ventral nerve cord, a complete gut, and a circulatory system that is usually closed.

Some animals have no body symmetry or have __________ symmetry like spokes on a wheel.

Respond to the following statement in reference to the five animal phyla listed below. -​Although most members are enclosed by hardened shells, this phylum name literally means "soft body."

You find a wormlike arthropod with a flattened body and carnivorous eating habits. It would most likely be identified as a ____.

During extended periods of dehydration, tardigrades ____.

The animal gut cavity may be a fully lined coelom or a partially lined __________.

__________ are multicelled heterotrophs without cell walls.

Respond to the following statement in reference to the five animal phyla listed below. -​"Wheel animals" are in this phylum.

__________, such as jellyfishes, corals, and sea anemones, are radially symmetrical.

When arthropods molt, they may change in four of the following ways. Which one is the exception?

The ____ are the most diverse animal group.

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

Choose the most appropriate answer for each. -chelicerates

Choose the most appropriate answer for each. -flatworms

Respond to the following statement in reference to the five animal phyla listed below. -Although most members are enclosed by hardened shells, this phylum name literally means "soft body."

Respond to the following statement in reference to the five animal phyla listed below. -"Wheel animals" are in this phylum.