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WorksheetsCrustaceans
Total questions: 32
Worksheet time: 17mins
Name
Class
Date
1.
How do crayfish breath?
a)
gills
b)
lungs
c)
through their skin
2.
Most anterior legs on crayfish that have pincers for capturing food and defense
a)
chelipeds
b)
swimmerets
c)
mandibles
d)
maxillae
3.
Appendages on crayfish that serve as feelers sensitive to touch, taste and balance
a)
chelipeds
b)
mandibles
c)
antennae
d)
swimmerets
4.
Why do arthropods have to shed their exoskeletons?
a)
it wears out
b)
they don't shed
c)
it limits the size they can grow
d)
to go from water to land environments
5.
How many pair of antennae do crustaceans have>
a)
4
b)
2
c)
1
d)
3
8.
The structures labeled E are the
a)
swimmerets
b)
walking legs
c)
maxillae
d)
uropods
7.
The structure labeled C is the
a)
antennae
b)
carapace
c)
abdomen
d)
uropods
8.
The structures labeled E are the
a)
swimmerets
b)
walking legs
c)
maxillae
d)
uropods
9.
The portion of exoskeleton that covers the cephalothorax is the
a)
telson
b)
carapace
c)
uropod
d)
cheliped
10.
What is this crustacean?
a)
copepod
b)
amphipod
c)
brine shrimp
d)
water flea
11.
What phylum are crustaceans a part of?
a)
Arachnids
b)
Arthropods
c)
Animals
d)
Invertebrates
12.
What are the body regions of a crustacean called?
a)
Head, Thorax, Abdomen
b)
Head, Cephalothorax, Abdomen
c)
Head, Body, Stomach
13.
What is molting?
a)
The process in which arthropods reproduce
b)
The process in which arthropods shed their outer covering and grow a larger one.
c)
The process in which larval forms develop into adult forms
d)
The process in which arthropods breathe
14.
What two characteristics do all Arthropods have?
a)
two legs per body segment
b)
jointed legs and a cephalothorax
c)
three body segments and metamorphosis
d)
jointed legs and segmented bodies
15.
What type of circulatory system do Arthropods have?
a)
closed
b)
open
16.
All arthropods have segmented bodies, jointed appendages, and ________________.
a)
tails
b)
lungs
c)
wings
d)
an exoskelton
17.
The removing and replacing of old exoskeleton is called
a)
metamorphosis
b)
replacement
c)
molting
d)
exoing
18.
What type of skeleton do Arthropods have?
a)
Endoskeleton made of chitin
b)
Hydrostatic skeleton
c)
Exoskeleton made of calcium carbonate
d)
Exoskeleton made of chitin
19.
What type of symmetry do Arthropods have?
a)
Radial
b)
Bilateral
c)
Asymmetrical
20.
What does the term arthropod mean?
a)
soft
b)
little rings
c)
jointed foot
d)
cephalization
21.
Krill and crabs are members of this group
a)
Echinoderms
b)
Poriferans
c)
Arthropods
d)
Mollusks
22.
Barnacles :
a)
are arthropods
b)
crustaceans
c)
are mollusks
d)
are both arthropods and crustaceans
23.
What is the exoskeleton of crustaceans and echinoderms made of?
a)
Hemocoel
b)
Dermocoel
c)
Carbohydrates
d)
Chitin
24.
Appendages on crayfish that serve as feelers sensitive to touch, taste and balance
a)
chelipeds
b)
mandibles
c)
antennae
d)
swimmerets
25.
How do arthropods move?
a)
Swimming
b)
Jointed Appendages
c)
Opposable Thumbs
d)
They do not move
26.
The process of re-growing lost body parts such as pincers and walking legs.
a)
hibernation
b)
regeneration
c)
molting
d)
respiration
27.
How do crayfish protect themselves from predators?
a)
hide in holes, under rocks or in weeds
b)
threatening and attacking with their pincers
c)
swim backward to escape danger
d)
All of the choices
28.
Which word best describes a crayfish's legs?
a)
curved
b)
straight
c)
jointed
29.
Since crayfish live in water, they breathe with lungs.
a)
True
b)
False
30.
Crustaceans, like crayfish, are all vertebrates.
a)
True
b)
False
31.
This is a picture of a ________.
a)
female
b)
male
32.
This is a picture of a ________.
a)
female
b)
male
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