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Biology, 6/e
Author Dr. George B. Johnson, Washington University
Author Dr. Peter H. Raven, Missouri Botanical Gardens & Washington University
Contributor Dr. Susan Singer, Carleton College
Contributor Dr. Jonathan Losos, Washington University

Arthropods

Multiple Choice Quiz

Please answer all questions



1

A lack of respiratory and circulatory systems distinguish the class
A)Pycnogonidia
B)Merostoma
C)Arachnida
D)Insecta
2

An example of a hermaphroditic crustacean is the
A)crab
B)lobster
C)barnacle
D)crayfish
3

A good example of tagmatization is the
A)head
B)abdomen
C)cephalothorax
D)chelicera
4

The major impediment to large size in arthropods is
A)the poor respiratory system
B)the inadequate nervous system
C)the inability of their excretory system to conserve water
D)the weight of a sufficiently strong exoskeleton
5

Night-flying insects have an eye that maximizes light intake. The eye is called
A)ocelli
B)superposition eye
C)photomultiplier eye
D)apposition eye
6

All crustaceans have a unique kind of larva called a
A)niaid
B)naupilus
C)trochophore
D)planula
E)nymph
7

The foremost appendages on spiders are
A)pedipalps
B)maxillae
C)antennae
D)chelicerae
E)mandibles
8

Which of the following has biramous appendages?
A)mites
B)centipedes
C)scorpions
D)copepods
E)horseshoe crabs
9

When the insect heart contracts, the blood flows to the
A)wings
B)head region
C)legs
D)thorax region
E)abdominal region
10

In horseshoe crabs, the most anterior appendages are the
A)antennae
B)pinchers
C)mandibles
D)pedipalps
E)chelicerae
11

The molting process in arthropods is known as
A)ecdysis
B)tagmatization
C)metamorphosis
D)paedomorphosis
E)cephalization
12

Chemicals for insect communication are called
A)ecdysones
B)protosones
C)pheromones
D)deuterosones
E)none of the above
13

In insects, air first enters the body for respiration through the
A)tracheoles
B)ossicles
C)spiracles
D)telson
E)trachea
14

Which of the following have uniramous mandibles?
A)crabs
B)water fleas
C)fairy shrimp
D)beetles
E)barnacles
15

The scorpion pincers are modified
A)chelicerae
B)pedipalps
C)mandibles
D)maxillae
E)telsons
16

The simple eyes of insects are
A)ocelli
B)apposition eyes
C)rhabdoms
D)superposition eyes
E)ommatidia
17

Of the various kinds of respiratory devices listed, crustacea have
A)book gills
B)tracheae
C)book lungs
D)gills
E)branchioles
18

Which of the following has two pairs of uniramous appendages per body segment?
A)lobsters
B)mites
C)horseshoe crabs
D)barnacles
E)millipedes
19

Which of the following insect structures is not homologous to the others listed?
A)wings
B)antennae
C)legs
D)mandibles
E)chelicerae
20

Which of the following is not a mandibulate?
A)centipede
B)insect
C)millipede
D)crustacean
E)scorpion
21

Which of the following groups of animals is not an "aquatic mandibulate"?
A)Ostracoda
B)Cladocera
C)Chilopoda
D)Isopoda
E)Decopoda
22

The immature stage of insects with wimple metamorphosis is often called a
A)chrysalis
B)larva
C)naupilus
D)pupa
E)nymph
23

While most insects have four wings, _______________ have only two.
A)termites
B)flies
C)fleas
D)bedbugs
E)crickets
24

The second pair of spider appendages is the
A)maxillae
B)uropods
C)pedipalps
D)mandibles
E)chelicerae
25

In the arthropod compound eye, each _______________ is covered with a lens and linked to eight special cells and a light sensitive core.
A)ommatidium
B)ocellus
C)rhabdom
D)retina
E)labyrinth
26

The most successful of all animal groups are the:
A)chordates
B)arthropods
C)annelids
D)mollusks
E)echinoderms
27

Which one of the following is not a characteristic of the arthropods?
A)jointed appendages
B)exoskeleton
C)coelom
D)segmented body
E)All of the above are characteristic of the arthropods.
28

Which one of the following is not a crustacean?
A)lobster
B)copepod
C)horseshoe crab
D)barnacle
E)crayfish
29

The largest group of arthropods is the:
A)arachnids
B)crustaceans
C)insects
D)millipedes
E)centipedes
30

Having chelicerae, a body divided into an anterior cephalothorax and posterior abdomen, and book lungs is characteristic of:
A)arachnids
B)insects
C)millipedes
D)crustaceans
E)trilobites
31

How is gas exchange accomplished in an insect?
A)Insects use skin as a gas-exchange surface; blood is circulated near the skin and picks up oxygen and releases carbon dioxide.
B)They have feather-like gills through which blood and water flow in a countercurrent mechanism for efficient gas exchange.
C)Insects have primitive lungs, called book lungs, which are a series of internal plates that provide surfaces for exchange of gasses between the blood and air.
D)Insects have tracheae that carry air deep into the body where exchange occurs directly with the tissues.
E)They have book gills which are modifications of the exoskeleton into a series of leaflike plates that serve as a surface for gas exchange.
32

Which of the following are not arthropods?
A)earthworms
B)crayfish
C)spiders
D)butterflies
E)both a and c
33

The nymph stage precedes the pupa stage in complete metamorphosis.
A)True
B)False
34

Horseshoe crabs are crustaceans.
A)True
B)False
35

A characteristic of insects is that they undergo a metamorphosis.
A)True
B)False