Question 1

During the process of "arthropodization," the role of the coelomic compartments as a _________ ________ was lost.

Accepted Answer

hydrostati

Question 2

Male sea spiders have a subsidiary pair of legs called _____________ on which they carry developing eggs.

Accepted Answer

The answer of Male sea spiders have a subsidiary pair...

Question 3

Scabies mite (Sarcoptes scabei)infections

Accepted Answer

A) are harmless and live in human hair follicles. 
B) cause intense itching. 
C) are the causative agent of "chiggers." 
D) are fatal infections because they carry Lyme disease. 
E) are fatal infections because they carry Rocky Mountain Spotted Fever. 
A) are harmless and live in human hair follicles. 
B) cause intense itching. 
C) are the causative agent of "chiggers." 
D) are fatal infections because they carry Lyme disease. 
E) are fatal infections because they carry Rocky Mountain Spotted Fever.

Question 4

For scorpions,mating is particularly risky for the male since the female can eat the male.Therefore,the male scorpion

Accepted Answer

A) uses the same procedure as male spiders. 
B) holds the females pincers in a "dance" position,deposits a spermatophore on the ground and dances her over it. 
C) transfers a spermatophore from between his body segments directly into hers. 
D) fertilizes her by hypodermic insemination where the sperm is injected inside her body cavity. 
E) still uses regular mating since this copulatory position keeps her facing away safely. 
A) uses the same procedure as male spiders. 
B) holds the females pincers in a "dance" position,deposits a spermatophore on the ground and dances her over it. 
C) transfers a spermatophore from between his body segments directly into hers. 
D) fertilizes her by hypodermic insemination where the sperm is injected inside her body cavity. 
E) still uses regular mating since this copulatory position keeps her facing away safely.

Question 5

What is the evolutionary significance of arthropodization? Aren't tetrapods such as humans as successful as arthropods? Explain your reasoning.

Accepted Answer

The evolutionary significance of arthrop

Question 6

Spiders breathe by means of

Accepted Answer

A) gills. 
B) diffusion across the soft cuticle. 
C) an extensive system of tracheae more complex than is found in insects. 
D) book lungs or primitive tracheae. 
E) coxal glands. 
A) gills. 
B) diffusion across the soft cuticle. 
C) an extensive system of tracheae more complex than is found in insects. 
D) book lungs or primitive tracheae. 
E) coxal glands.

Question 7

__________ differ from all other arachnids in having complete fusion of the cephalothorax and abdomen.

Accepted Answer

The answer of __________ differ from all other arachnids in...

Question 8

Do you believe our current understanding of the phylogeny of the arthropods is the correct one? Why or why not?

Accepted Answer

As a non-expert in the field of phylogen

Question 9

The mites and ticks carry their mouthparts on a little anterior projection called the

Accepted Answer

A) hypostome. 
B) rostrum. 
C) capitulum. 
D) pedipalp. 
E) pectin. 
A) hypostome. 
B) rostrum. 
C) capitulum. 
D) pedipalp. 
E) pectin.

Question 10

The Acari

Accepted Answer

A) have a distinct head,thorax,and abdomen. 
B) are of great economic and medical importance. 
C) are a limited and well known order of about 2,000 species. 
D) are all terrestrial. 
E) All of the choices are correct. 
A) have a distinct head,thorax,and abdomen. 
B) are of great economic and medical importance. 
C) are a limited and well known order of about 2,000 species. 
D) are all terrestrial. 
E) All of the choices are correct.

Question 11

Spider silk

Accepted Answer

A) is very strong but cannot be stretched without breaking. 
B) is only produced by those orb web spiders that form webs to catch insects. 
C) is formed as solid coiled threads internally that can be uncoiled and used whenever needed. 
D) is used differently by different spider species. 
E) All of the choices are correct. 
A) is very strong but cannot be stretched without breaking. 
B) is only produced by those orb web spiders that form webs to catch insects. 
C) is formed as solid coiled threads internally that can be uncoiled and used whenever needed. 
D) is used differently by different spider species. 
E) All of the choices are correct.

Question 12

Two poisonous spiders in the United States that are dangerous to humans are the black widow and the ______ _______.

Accepted Answer

The answer of Two poisonous spiders in the United States...

Question 13

The term "myriapod" includes

Accepted Answer

A) all arthropods,gastropods,and brachiopods. 
B) just the millipedes and centipedes. 
C) insects and their ancestors. 
D) all arthropods except arachnids and crustaceans. 
E) centipedes,millipedes,pauropods and symphylans but not insects. 
A) all arthropods,gastropods,and brachiopods. 
B) just the millipedes and centipedes. 
C) insects and their ancestors. 
D) all arthropods except arachnids and crustaceans. 
E) centipedes,millipedes,pauropods and symphylans but not insects.

Question 14

Sea spiders

Accepted Answer

A) are extinct. 
B) feed on fluids of soft-bodied animals such as cnidarians. 
C) resemble crustaceans. 
D) have an unusually large abdomen. 
E) are marine arachnid spiders. 
A) are extinct. 
B) feed on fluids of soft-bodied animals such as cnidarians. 
C) resemble crustaceans. 
D) have an unusually large abdomen. 
E) are marine arachnid spiders.

Question 15

There is a hypothesis that euryterid predation on early fish induced the selection for armor in these vertebrates.What kind of evidence would you require to show that there might be a causation here,rather than just a correlation in the fossil record?

Accepted Answer

To demonstrate causation rather than jus

Question 16

Describe the bite of the chigger mite.How long are the nymphs actually attached,and why is it that some people have such intense reactions to their bites yet others have none?

Accepted Answer

The bite of the chigger mite, also known

Question 17

You are given a large tropical millipede to raise in a humid terrarium lined with soil and leaf litter.What should you feed it?

Accepted Answer

A) Insects 
B) Sliced apples and dead soft plant tissues 
C) Freshly cut wood 
D) Fresh meat or dog food 
E) All of the choices would be food for a millipede 
A) Insects 
B) Sliced apples and dead soft plant tissues 
C) Freshly cut wood 
D) Fresh meat or dog food 
E) All of the choices would be food for a millipede

Question 18

Arthropodan cephalization is pronounced.Would this have anything to do with tagmatization? If an organism is highly cephalized does it always exhibit tagmatization? If an organism exhibits tagmatization,is it always highly cephalized?

Accepted Answer

Arthropodan cephalization refers to the

Question 19

The tough,resistant,nitrogenous polysaccharide in the cuticle of arthropods is ________________.

Accepted Answer

The answer of The tough,resistant,nitrogenous polysaccharide in the cuticle of...

Question 20

What carries the bacteria that cause Lyme disease?

Accepted Answer

A) Dermacentor sp 
B) Boophilus annulatus 
C) Trombicula sp 
D) Demodex sp 
E) Ixodes sp 
A) Dermacentor sp 
B) Boophilus annulatus 
C) Trombicula sp 
D) Demodex sp 
E) Ixodes sp

Exam 19: Trilobites, Chelicerates, and Myriapods

During the process of "arthropodization," the role of the coelomic compartments as a _________ ________ was lost.

Male sea spiders have a subsidiary pair of legs called _____________ on which they carry developing eggs.

Scabies mite (Sarcoptes scabei)infections

For scorpions,mating is particularly risky for the male since the female can eat the male.Therefore,the male scorpion

What is the evolutionary significance of arthropodization? Aren't tetrapods such as humans as successful as arthropods? Explain your reasoning.

Spiders breathe by means of

__________ differ from all other arachnids in having complete fusion of the cephalothorax and abdomen.

Do you believe our current understanding of the phylogeny of the arthropods is the correct one? Why or why not?

The mites and ticks carry their mouthparts on a little anterior projection called the

The Acari

Spider silk

Two poisonous spiders in the United States that are dangerous to humans are the black widow and the ______ _______.

The term "myriapod" includes

Sea spiders

There is a hypothesis that euryterid predation on early fish induced the selection for armor in these vertebrates.What kind of evidence would you require to show that there might be a causation here,rather than just a correlation in the fossil record?

Describe the bite of the chigger mite.How long are the nymphs actually attached,and why is it that some people have such intense reactions to their bites yet others have none?

You are given a large tropical millipede to raise in a humid terrarium lined with soil and leaf litter.What should you feed it?

Arthropodan cephalization is pronounced.Would this have anything to do with tagmatization? If an organism is highly cephalized does it always exhibit tagmatization? If an organism exhibits tagmatization,is it always highly cephalized?

The tough,resistant,nitrogenous polysaccharide in the cuticle of arthropods is ________________.

What carries the bacteria that cause Lyme disease?

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Crustaceans

Hexapods

Chaetognaths, echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distribution

Animal Ecology

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During the process of "arthropodization," the role of the coelomic compartments as a _ was lost.

Two poisonous spiders in the United States that are dangerous to humans are the black widow and the _.