I. External Structure
1. Single lens, sensitive only to changes in light intensity. 2. Sense crude movement, multi-lens. 3. Organs of taste. 4. Senses sound. 5. Sense of touch or feel. 6-8. List, in order, the three body divisions of the grasshopper beginning with the anterior end.   9. Abdominal segment on which the tympanum. 10. Opening to the trachea. 11. Egg laying structure of the female. 12. A rounded blunt abdomen is typical of what sex? 13. Number of wings on a grasshopper.	1. ___________________ 2. ___________________ 3. ___________________ 4. ___________________ 5. ___________________ 6. ___________________ 7. ___________________ 8. ___________________ 9. ___________________ 10. ___________________ 11. ___________________ 12. ___________________ 13. ___________________
II. Mouth parts
Lay the mouth parts of your grasshopper on your lab sheet and call your instructor to check your work before proceeding.
III. Grasshopper legs
14. How many legs do all insects have? 15. What are the largest legs in the grasshopper? 16.-20. Based on length, list from largest to smallest the five parts of a grasshoppers leg.       21. Do all the legs have the five labeled parts?	14. ___________________ 15. ___________________ 16. ___________________ 17. ___________________ 18. ___________________ 19. ___________________ 20. ___________________ 21. ___________________
IV. Opening up the grasshopper
22. What is the hard external covering called?	22. ___________________

V. The Digestive System
23. What structure grinds up the food? 24. What organ is anterior to the gizzard? 25. What are the fingerlike projections behind the gizzard? 26. Where does digestion and absorption occur? 27. What secretes digestive juices into the mouth? 28. Water is removed by what part of the digestive tract? 29. What organ is immediately posterior to the intestine? 30. What organ stores food prior to it being ground up?	23. ___________________ 24. ___________________ 25. ___________________ 26. ___________________ 27. ___________________ 28. ___________________ 29. ___________________ 30. ___________________
VI. Excretion of nitrogenous wastes
31. What collects nitrogenous wastes?	31. ___________________
VII. Respiration
32. What do we call the external openings of the trachea? 33. In flying insects, the _____________ lead to air sacs.	32. ___________________ 33. ___________________
VIII. Circulation
34. Do all arthropods have an open circulatory system?	34. ___________________
IX. Reproduction
35. What sex is your grasshopper? 36. What do you call the sex organ of your grasshopper.	35. ___________________ 36. ___________________
X. Nervous system
37. All arthropods have a dorsal nerve cord (yes/no). 38. What do you call Knots of nerve on the nerve cord? 39. In what body division of the grasshopper is the brain? 40. Challenge question: Because of the amount of optic information entering the brain of the grasshopper a special lobe of the brain is dedicated to visual perception. What do scientists call that lobe? (Not in your lab or book.)	37. ___________________ 38. ___________________ 39. ___________________ 40. ___________________

The Dissection Manual

The manual should have a cover, table of contents, for THE GRASSHOPPER we will look at in LIFE SCIENCE.

SECTION (1) SHOULD HAVE THESE QUESTIONS AND ANSWERS

   1.   Name of Organism you should give the common and scientific name  

2. Classification For any in the Animalia kingdom: give kingdom, phylum, class. 

3. Facts: List any facts you have learned about the organism. Must have at least FIVE.
5. SECTION 2  ( SHOULD HAVE THESE DRAWINGS BELOW

  4. Diagrams: There should be a diagram OF THE GRASSHOPPER. If they are     being dissected, the diagrams should show internal and external structures.

  5. Heart Type

  6. Oxygen/carbon dioxide exchange

  7. Reproduction

  8. Brain

  9. Nerve cord

  10.DIGESTIVE TRACT

  11. SPECIAL ADAPTATIONS

SECTION 3 (SHOULD HAVE THESE QUESTIONS AND ANSWERS

Write about or list any SPECIAL adaptations that the organism has that helps it survive and thrive.

12. Importance: Of what importance is this organism to the world? Does it have any economical value? How does it fit into the food chain?

 13. Habitat (where does it live) and related species