Name: _______________________________ Date: ______________ Period: _____
Arthropod and Echinoderm Test and Lab Practical Review
To complete this review use: Arthropod notes, Echinoderm notes, External Comparison of
Arthropods (lab), Starfish Dissection (lab), Arthropod Crossword, Claws! Video Guide
Using the arthropod appendage chart, describe the following appendages and explain their
function.
a. Antenna
e. Mandible
b. Antennule
f. Cheliped
c. Swimmeret
g. Uropod
rd
d. 3 maxilliped
h. Telson
ARTHROPODS
1. List general characteristics of arthropods; include what the term arthropod means.
2. What mouth appendage is used to move water over the gills?
3. How do you distinguish a male crab from a female crab?
4. Why do arthropods molt?
5. What kind of skeleton do arthropods have? What is their skeleton made of?
6. What is a decapod? What class are they found in?
7. A hermit crab makes its home in a shell that has a _______________-handed spiral
shape.
8. The ____________________________________ migrates by travelling in columns
with their antennae attached to each other to provide protection.
9. ___________________ contains copper to which oxygen binds to in Arthopods blood
(makes blood blue).
ECHINODERMS
10. List general characteristics of echinoderms; include what the term echinoderm means.
11. What is the function of Aristotle’s Lantern? What organisms have it?
12. How do sea stars breathe?
13. What happens to a sea star if it loses and arm?
14. How does a sea star open a clam up to eat?
Classification
15. List all examples of organisms found in the following Classes:
a. Asteroidea
f. Merostomata
b. Crinoidea
g. Ophiuroidea
c. Crustacea
d. Echinoidea
e. Holothuroidea
Name: _______________________________ Date: ______________ Period: _____
Arthropod and Echinoderm Test and Lab Practical Review
To complete this review use: Arthropod notes, Echinoderm notes, External Comparison of
Arthropods (lab), Starfish Dissection (lab), Arthropod Crossword, Claws! Video Guide
Using the arthropod appendage chart, describe the following appendages and explain their
function.
a. Antenna
e. Mandible
b. Antennule
f. Cheliped
c. Swimmeret
g. Uropod
rd
d. 3 maxilliped
h. Telson
ARTHROPODS
1. List general characteristics of arthropods; include what the term arthropod means.
2. What mouth appendage is used to move water over the gills?
3. How do you distinguish a male crab from a female crab?
4. Why do arthropods molt?
5. What kind of skeleton do arthropods have? What is their skeleton made of?
6. What is a decapod? What class are they found in?
7. A hermit crab makes its home in a shell that has a _______________-handed spiral
shape.
8. The ____________________________________ migrates by travelling in columns
with their antennae attached to each other to provide protection.
9. ___________________ contains copper to which oxygen binds to in Arthopods blood
(makes blood blue).
ECHINODERMS
10. List general characteristics of echinoderms; include what the term echinoderm means.
11. What is the function of Aristotle’s Lantern? What organisms have it?
12. How do sea stars breathe?
13. What happens to a sea star if it loses and arm?
14. How does a sea star open a clam up to eat?
Classification
15. List all examples of organisms found in the following Classes:
a. Asteroidea
e. Holothuroidea
b. Crinoidea
f. Merostomata
c. Crustacea
g. Ophiuroidea
d. Echinoidea
16. Define or give the function of the following structures on a horseshoe crab. Be able to
label on a diagram
a. Telson
c. Walking legs
b. Book gills
d. Carapace
17. Define or give the function of the following structures on a crayfish and be able to label
them.
a. Telson
e. Walking legs
b. Swimmerets
f. Chelipeds
c. Uropod
g. Rostrum
d. Carapace
h. Antenntae
18. Define or give the function of the following structures of a crab and be able to label
them.
a. Swimming legs
e. Eyestalk
b. Walking legs
f. Antennae
c. Carapace
g. Antennules
d. Chelipeds
19. Define or give the function of the following internal structures of a sea star and be able
to label them:
a. Digestive gland
c. Radial canal
b. Gonads
d. Ampullae
20. Be able to label the following external structures on a sea star and give the definition or
function of each structure:
a. Madreporite plate
d. Mouth
b. Ray (arm)
e. Tube feet
c. Central disk
f. Ambulacral groove
16. Define or give the function of the following structures on a horseshoe crab. Be able to
label on a diagram
a. Telson
c. Walking legs
b. Book gills
d. Carapace
17. Define or give the function of the following structures on a crayfish and be able to label
them.
a. Telson
e. Walking legs
b. Swimmerets
f. Chelipeds
c. Uropod
g. Rostrum
d. Carapace
h. Antenntae
18. Define or give the function of the following structures of a crab and be able to label
them.
a. Swimming legs
e. Eyestalk
b. Walking legs
f. Antennae
c. Carapace
g. Antennules
d. Chelipeds
19. Define or give the function of the following internal structures of a sea star and be able
to label them:
a. Digestive gland
c. Radial canal
b. Gonads
d. Ampullae
20. Be able to label the following external structures on a sea star and give the definition or
function of each structure:
a. Madreporite plate
d. Mouth
b. Ray (arm)
e. Tube feet
c. Central disk
f. Ambulacral groove