Question 1

Provide a biologically reasonable explanation for why insects never exploited the marine environment.

Accepted Answer

There are several biologically reasonabl

Question 2

Which is NOT a correct association of mouthparts and insect?

Accepted Answer

A)  Sucking mouthparts-water scorpion 
B)  Sponging mouthparts-house fly 
C)  Biting mouthparts-grasshopper 
D)  Sponging mouthparts-butterfly 
E)  Sucking mouthparts-mosquito 
A)  Sucking mouthparts-water scorpion 
B)  Sponging mouthparts-house fly 
C)  Biting mouthparts-grasshopper 
D)  Sponging mouthparts-butterfly 
E)  Sucking mouthparts-mosquito

Question 3

The nervous system of an insect consists of

Accepted Answer

A)  a brain where all ganglia extend out to communicate with each organ. 
B)  a minimal brain with neurosecretory functions and a nerve cord with ganglia extending down the dorsum. 
C)  a minimal brain with neurosecretory functions and a nerve cord with ganglia extending down the ventral surface. 
D)  no brain but coordination handled by ganglia in each segment and a nerve ladder for coordination. 
E)  None of the choices are correct. 
A)  a brain where all ganglia extend out to communicate with each organ. 
B)  a minimal brain with neurosecretory functions and a nerve cord with ganglia extending down the dorsum. 
C)  a minimal brain with neurosecretory functions and a nerve cord with ganglia extending down the ventral surface. 
D)  no brain but coordination handled by ganglia in each segment and a nerve ladder for coordination. 
E)  None of the choices are correct.

Question 4

The stages in the life cycle of a holometabolous insect are egg,larva,________________,adult.

Accepted Answer

The answer of The stages in the life cycle of...

Question 5

The respiratory system in insects consists of specialized air tubes called the ______________.

Accepted Answer

The answer of The respiratory system in insects consists of...

Question 6

Insects differ from other arthropods because insects

Accepted Answer

A)  have paired, jointed legs. 
B)  have ectognathous mouthparts. 
C)  have a single pair of antennae. 
D)  mandibles. 
E)  have tagmata or fused segments. 
A)  have paired, jointed legs. 
B)  have ectognathous mouthparts. 
C)  have a single pair of antennae. 
D)  mandibles. 
E)  have tagmata or fused segments.

Question 7

The distinction between endognathous and ectognathous insects is a distinction between

Accepted Answer

A)  diplurans, springtails, and proturans versus the rest of the insect orders. 
B)  holding the mandibles and maxillae internally in a pouch versus having external mouthparts. 
C)  adaptation for feeding on very small particles versus a wider ability to feed on larger food. 
D)  All of the choices are correct. 
E)  None of the choices are correct. 
A)  diplurans, springtails, and proturans versus the rest of the insect orders. 
B)  holding the mandibles and maxillae internally in a pouch versus having external mouthparts. 
C)  adaptation for feeding on very small particles versus a wider ability to feed on larger food. 
D)  All of the choices are correct. 
E)  None of the choices are correct.

Question 8

Insect wings are

Accepted Answer

A)  an extension of the cuticle formed by the epidermis. 
B)  a double membrane stiffened with veins. 
C)  reduced to a pair of wings and a pair of balancing halteres in true flies. 
D)  a feature of adult but not larval insects. 
E)  All of the choices are correct. 
A)  an extension of the cuticle formed by the epidermis. 
B)  a double membrane stiffened with veins. 
C)  reduced to a pair of wings and a pair of balancing halteres in true flies. 
D)  a feature of adult but not larval insects. 
E)  All of the choices are correct.

Question 9

The major flight muscles of insects such as flies and bees

Accepted Answer

A)  are all indirect. 
B)  are all synchronous. 
C)  do not require nervous stimulation to operate. 
D)  beat at a slow rate (under 100 beats per second) but with great efficiency. 
E)  None of the choices are correct. 
A)  are all indirect. 
B)  are all synchronous. 
C)  do not require nervous stimulation to operate. 
D)  beat at a slow rate (under 100 beats per second) but with great efficiency. 
E)  None of the choices are correct.

Question 10

Insects undergo a period of dormancy in winter or summer called

Accepted Answer

A)  ecdysis. 
B)  trophallaxis. 
C)  metamorphosis. 
D)  diapause. 
E)  the pupal stage. 
A)  ecdysis. 
B)  trophallaxis. 
C)  metamorphosis. 
D)  diapause. 
E)  the pupal stage.

Question 11

The class Insecta

Accepted Answer

A)  has more species than any other group of animals. 
B)  is of major medical importance to humans. 
C)  is of major economic importance to humans. 
D)  are critical in ecology that the loss of all insects would cause a major disruption in nature. 
E)  All of the choices are correct. 
A)  has more species than any other group of animals. 
B)  is of major medical importance to humans. 
C)  is of major economic importance to humans. 
D)  are critical in ecology that the loss of all insects would cause a major disruption in nature. 
E)  All of the choices are correct.

Question 12

Insect legs are attached to the

Accepted Answer

A)  head, thorax, and abdomen (one pair each). 
B)  thorax and abdomen (two pair on the thorax and one on the abdomen). 
C)  thorax with one pair on the prothorax, mesothorax and metathorax. 
D)  thorax with all three pairs on the mesothorax. 
E)  thorax with two pairs on the mesothorax and one pair on the metathorax. 
A)  head, thorax, and abdomen (one pair each). 
B)  thorax and abdomen (two pair on the thorax and one on the abdomen). 
C)  thorax with one pair on the prothorax, mesothorax and metathorax. 
D)  thorax with all three pairs on the mesothorax. 
E)  thorax with two pairs on the mesothorax and one pair on the metathorax.

Question 13

How is an insect circulatory system best described?

Accepted Answer

A)  The open system uses a dorsal aorta and accessory pulsatory organs to push hemolymph through the body cavities and wings, etc. but the hemolymph has little respiratory function. 
B)  The system is totally closed like ours with arteries and veins and the amebocytes aid in respiratory function. 
C)  The system is similar to ours with general closed sinuses but no distinct arteries and veins. 
D)  A circulatory system is totally absent and each body cell is on its own to gain food and get rid of wastes. 
E)  None of the choices are correct. 
A)  The open system uses a dorsal aorta and accessory pulsatory organs to push hemolymph through the body cavities and wings, etc. but the hemolymph has little respiratory function. 
B)  The system is totally closed like ours with arteries and veins and the amebocytes aid in respiratory function. 
C)  The system is similar to ours with general closed sinuses but no distinct arteries and veins. 
D)  A circulatory system is totally absent and each body cell is on its own to gain food and get rid of wastes. 
E)  None of the choices are correct.

Question 14

Termites transfer inhibiting pheromones to suppress female offspring from becoming fertile through a mutual feeding process called

Accepted Answer

A)  mimicry. 
B)  trophallaxis. 
C)  biological control. 
D)  diapause. 
E)  saprophagous behavior. 
A)  mimicry. 
B)  trophallaxis. 
C)  biological control. 
D)  diapause. 
E)  saprophagous behavior.

Question 15

Integrated pest management

Accepted Answer

A)  never uses pesticides for insect control. 
B)  combines use of resistant plants, crop rotation, timing of sowing, and use of biological controls with limited insecticide use. 
C)  is synonymous with organic farming. 
D)  requires a willingness to harvest far less food of poorer quality. 
E)  All of the choices are correct. 
A)  never uses pesticides for insect control. 
B)  combines use of resistant plants, crop rotation, timing of sowing, and use of biological controls with limited insecticide use. 
C)  is synonymous with organic farming. 
D)  requires a willingness to harvest far less food of poorer quality. 
E)  All of the choices are correct.

Question 16

The majority of insects are phytophagous or ______________,which means that they feed on plant juices or tissues.

Accepted Answer

The answer of The majority of insects are phytophagous or...

Question 17

Ecdysiotropin is secreted by the

Accepted Answer

A)  corpora allata. 
B)  ecdysial glands. 
C)  brain. 
D)  epidermis. 
E)  corpora cardiaca. 
A)  corpora allata. 
B)  ecdysial glands. 
C)  brain. 
D)  epidermis. 
E)  corpora cardiaca.

Question 18

Explain why some entognathans may be more closely related to insects than other entognathans.

Accepted Answer

Entognathans are a class of arthropods t

Question 19

Decades ago,newspaper headlines announced that scientists had proven that bumblebees could not fly.The actual situation involved measurements of the nerve impulses to the flight muscles.This count of nerve impulses,translated to one wing beat per impulse,was too low for the surface area of the bumblebee wing to lift the big bumblebee body off the ground.The formula for calculating the lift of a wing surface was well-demonstrated for airplane wings.From our present knowledge of insect wing control,did scientists actually prove that bumblebees could not fly,and why do we no longer consider this aerodynamic calculation a problem?

Accepted Answer

No, scientists did not actually prove th

Question 20

Primitively wingless hexapods are the

Accepted Answer

A)  neuropterans. 
B)  thysanurans. 
C)  zorapterans. 
D)  isopterans. 
E)  hemipterans. 
A)  neuropterans. 
B)  thysanurans. 
C)  zorapterans. 
D)  isopterans. 
E)  hemipterans.

Exam 29: Support, Protection, and Movement

Provide a biologically reasonable explanation for why insects never exploited the marine environment.

Which is NOT a correct association of mouthparts and insect?

The nervous system of an insect consists of

The stages in the life cycle of a holometabolous insect are egg,larva,________________,adult.

The respiratory system in insects consists of specialized air tubes called the ______________.

Insects differ from other arthropods because insects

The distinction between endognathous and ectognathous insects is a distinction between

Insect wings are

The major flight muscles of insects such as flies and bees

Insects undergo a period of dormancy in winter or summer called

The class Insecta

Insect legs are attached to the

How is an insect circulatory system best described?

Termites transfer inhibiting pheromones to suppress female offspring from becoming fertile through a mutual feeding process called

Integrated pest management

The majority of insects are phytophagous or ______________,which means that they feed on plant juices or tissues.

Ecdysiotropin is secreted by the

Explain why some entognathans may be more closely related to insects than other entognathans.

Primitively wingless hexapods are the

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

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

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 Distributions

Animal Ecology

Filters