Applied Science
Name_________________________________
Marine Biology Ch.7
Dissections Test
Part A: Multiple choice and Short answer. Please write the best answer to each of the problems
on the line next to the question number. [1 pt. each]
1. ______What part of the sea urchin functions as the mouth?
A. Madreporite
B. Siphon
D. Aristotle’s Lantern
C. Intestines
2. ______What part of the sea urchin is the water intake?
A. Madreporite B. Intestines
C. Siphon
D. Teeth
3. ______Which is 1 of the 2 main functions water is used for by the sea urchin?
A. Movement
B. Eating
C. Muscle toning
4. ___________________What is one part the sea urchin has in common with the star fish?
5. ________________________________What is one part the sea urchin has in common
with YOU(assuming you are human) ?
6. ______What type of symmetry does the starfish have?
A. Radial
B. Bilateral
C. Asymmetrical
7. _______What is the side of the starfish called where the mouth is located?
A. Oral
B. Aboral
8. _______________________________________What is the function of the madreporite?
9. _______________________________________What is water used for inside a starfish?
10. _______What is the largest organ in the dogfish shark?
A. Stomach
B. liver
C. cloaca
D. mouth
11. _________________________________ What is one animal a starfish eats?
12. _______Which is part of the water vascular system in the starfish?
A. Eyespot
B. Pyloric caeca
C. Stone canal
13. ______ Which of the following is NOT a part of the sea urchin?
A. Eyespot
B. Gonad
C. Tooth
D. Madreporite
14. In sentences, trace the path water takes through the water vascular system from outside
the starfish through to the tube feet. (3pts)
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
15. State one part of the shark nervous system and explain what important function it
performs for the shark. (2pts)
Nervous system part:_______________________________________
Function:________________________________________________________________
________________________________________________________________________
16. How is the shark digestive system different than a human digestive system?
________________________________________________________________________
________________________________________________________________________
17. What does the lateral line of a shark contain that is important for detection?
________________________________________________________________________
________________________________________________________________________
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Part B: Diagrams. Please label the diagram parts in the box for each organism.
[1 pt. per box] WORD BANK: Some will be used, but not all.
Ampullae, pyloric caeca, siphon, ossicles, madreporite, stone canal, ambulacral groove,
cephalothorax, esophagus, mouth, stomach, teeth, shell.
Shark diagram on back