1. NONMUSICAL CHAIRS
CRAYFISH
(CRUSTACEA)

2. 1. NAME THE SYSTEM THE PINK STRUCTURES BELONG TO.
NERVOUS SYSTEM

3. 2. THE ABILITY OF THIS APPENDAGE TO DROP OFF AT THE BASE IS CALLED________________.
AUTOTOMY

4. 3. THE ABILITY OF THIS APPENDAGE TO REGROW ITSELF AFTER INJURY IS CALLED __________________.
REGENERATION

5. 4. THE STRUCTURE LABELED WITH A #2, WHAT SYSTEM DOES IT BELONG TO?
RESPIRATORY

6. 5. WHAT IS THE FUNCTION OF THE HOLES IN THIS STRUCTURE?
TO ALLOW BLOOD TO RE-ENTER THE HEART.

7. 6. WHAT IS THE TERM THAT WE USE TO DESCRIBE THIS PICTURE?
“IN BERRY “

8. 7. WHAT SYSTEM DOES THE STRUCTURE LABELED WITH A RED ARROW BELONG TO?
DIGESTIVE

9. WHAT ARE THE TEETH INSIDE THE STOMACH CALLED?
GASTRIC MILL
9. WHICH STOMACH ARE THEY PRESENT IN?
CARDIAC STOMACH

10. 10. WHAT IS THE FUNCTION OF THE MANDIBLE?
TO CHEW THE FOOD.
WHAT IS THE FUNCTION OF THE MAXILLAE?
12. WHAT IS THE FUNCTION OF THE MAXILLIPEDS?
TO MANIPULATE THE FOOD AND CREATE WATER CURRENTS UNDERNEATH THE GILLS.
MANIPULATE THE FOOD

11. THE BLUE ARROW IS POINTING TO THE ___________ ________________.
SEMINAL RECEPTACLE

12. 15. NAME THE TWO BODY REGIONS OF A CRAYFISH.
CEPHALOTHORAX AND ABDOMEN

13. 16. NAME THE FUNCTIONS OF THE SWIMMERETS.
CREATE WATER CURRENTS, SWIM, HELP IN REPRODUCTION
17. WHAT SYSTEM DO THE GREEN GLANDS BELONG TO?
18. WHAT ARE THE FUNCTIONS OF THE GREEN GLANDS?
EXCRETORY
TO REMOVE EXCESS WATER AND EXCRETE NITROGEN WASTE.

14. A CRAYFISH’S RESPIRATORY SYSTEM IS LIKE A CLAM’S BECAUSE:
A CRAYFISH’S CIRCULATORY SYSTEM IS DIFFERENT FROM AN EARTHWORM’S BECAUSE:
A CRAYFISH’S IS OPEN AND AN EARTHWORM’S IS CLOSED.
A CRAYFISH’S RESPIRATORY SYSTEM IS LIKE A CLAM’S BECAUSE:
A CRAYFISH’S REPRODUCTIVE SYSTEM IS UNLIKE AN EARTHWORM’S BECAUSE:
THEY BOTH USE GILLS TO RESPIRE.
EARTHWORMS ARE HERMAPHRODITIC AND CRAYFISH HAVE SEPARATE SEXES.

15. FILL IN THE FUNCTIONS OF THE PARTS.
EXCRETE NITROGEN WASTE AND GET RID OF EXCESS WATER.
GREEN GLANDS:
MAXILLAE
MAXILLIPEDS
ANTENNULES
MANIPULATE FOOD AND CREATE WATER CURRENT FOR THE GILLS.
MANIPULATE FOOD.
SENSE TOUCH, TASTE, AND EQUILIBRIUM.

16. FILL IN THE FUNCTIONS OF THE PARTS.
TELSON & UROPODS:
ANUS:
SEMINAL RECEPTACLE
VAS DEFERENS
TO WORK WITH ABDOMINAL MUSCLES AND PROPEL THE CRAYFISH BACKWARDS.
TO EXPEL DIGESTIVE WASTE.
TO RECEIVE AND STORE SPERM.
TO CARRY SPERM FROM TESTES TO THE PORE AT THE BASE OF THE FIFTH WALKING LEG.

17. FILL IN THE FUNCTION OF THE PARTS.
CARAPACE:
SWIMMERETS:
GASTRIC MILL:
SENSORY HAIRS:
TO PROTECT THE CEPHALOTHORAX.
TO SWIM, CREATE CURRENT, TRANSFER SPERM, AND HOLD ONTO EMBRYOS.
TO GRIND UP THE FOOD INTO A PASTE.
TO SENSE VIBRATION AND CHEMICALS IN THE WATER.