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Crayfish

Total questions: 28

Worksheet time: 20mins

Name
Class
Date
1.
What are crayfish?
a)
mammals
b)
amphibians
c)
crustaceans
d)
none of these
2.
Where do crayfish live?
a)
salt water
b)
land
c)
trees
d)
fresh water
3.
Crayfish are omnivores. What does that mean?
a)
They eat plants and animals.
b)
They eat only plants.
c)
They eat only animals.
d)
They don't eat.
4.
What is it called when crayfish lose their shell and grow a new one?
a)
changing shells
b)
growing
c)
jointed
d)
molting
5.
The process of re-growing lost body parts such as pincers and walking legs.
a)
hibernation
b)
regeneration
c)
molting
d)
respiration
6.
Crayfish are water breathers. They can stay out of the water for short periods of time if...
a)
they are looking for a mate
b)
they are looking to hibernate
c)
it's time to molt
d)
their gills stay wet, so they can breathe
7.
Why do crayfish molt?
a)
the exoskeleton is hard and gets broken
b)
they like to molt so they are soft
c)
as a crayfish grows the exoskeleton doesn't grow so it must be replaced.
8.
Since crayfish live in water, they breathe with lungs.
a)
True
b)
False
9.
the hard, protective covering which supports an arthropod
a)
abdomen
b)
environment
c)
exoskeleton
10.

Identify #1 structure

a)

antennae

b)

cephalothorax

c)

chilapeds

d)

walking legs

11.

Identify structure #3

a)

Cephalothorax

b)

Antennae

c)

Swimmerettes

d)

Chilapeds

12.

Identify structure #7

a)

Antennae

b)

cephalothorax

c)

abdomen

d)

chilapeds

13.

Crayfish use ____ to grab food and protect themselves

a)

Antenna

b)

segments

c)

chilapeds

d)

cephalothorax

14.

What is the structure labeled 2

a)

Antenna

b)

antennules

c)

cephalothorax

d)

abdomen

15.

What is the structure labeled 6

a)

Antenna

b)

antennules

c)

cephalothorax

d)

abdomen

16.

What is the structure labeled 4

a)

Antenna

b)

compound eye

c)

cephalothorax

d)

abdomen

17.

What is the structure labeled 10

a)

uropod

b)

compound eye

c)

cephalothorax

d)

abdomen

18.

Which kingdom do Crayfish belong to?

a)

Arthropoda

b)

Decapoda

c)

Crustacea

d)

Animalia

19.

Crayfish belong to which phylum?

a)

Arthropoda

b)

Crustacea

c)

Decapoda

d)

Animalia

20.

Crayfish belong to which subphylum?

a)

Arthropoda

b)

Crustacea

c)

Decapoda

d)

Animalia

21.

Crayfish belong to which order?

a)

Arthropoda

b)

Crustacea

c)

Decapoda

d)

Animalia

22.

Which word means jointed appendages?

a)

Decapoda

b)

Crustacea

c)

Kneepoda

d)

Arthropoda

23.

Which word means 10 appendages?

a)

Decapoda

b)

Crustacea

c)

Decalega

d)

Arthropoda

24.

Which organism is in the same Phylum as Crayfish?

a)

Earthworm

b)

Crab

c)

Bird

d)

Fish

25.

How many Chilapeds do Crayfish have?

a)

4

b)

5

c)

2

d)

1

26.

How many swimmerets do crayfish have?

a)

4

b)

5

c)

2

d)

10

27.

Where are swimmerets located?

a)

abdomen

b)

cephalothorax

c)

antenna

d)

chilapeds

28.

Where are a crayfish's teeth located?

a)

mouth

b)

mandible

c)

stomach

d)

tail

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