1. Warm-up
Write everything that you think you know about frogs

2. Warm up
Write down two adaptations that frogs have so they can live in the water and on land

3. Frog Dissection

4. FROG ANIMALIA CHORDATA VERTEBRATA “backbone” AMPHIBIA “double life”
KINGDOM _____________
PHYLUM ____________________________
SUBPHYLUM ___________________________
CLASS _______________________________
ORDER _____________________________
ANIMALIA
CHORDATA
VERTEBRATA “backbone”
AMPHIBIA “double life”
ANURA “without a tail”

5. AMPHIBIAN CHARACTERISTICS
Moist, thin skin without scales
External Nares or nostrils
Nictitating Membrane, a 3rd eyelid - This covers the eyes when the frog is under water.
Aquatic (water based) larva changes to terrestrial (land based) adult
Feet without claws
Respiration with gills, lungs, skin, mouth
Ectothermic (cold blooded)

6. Thin, moist skin – no scales Mucous glands make it “slimy”
Camouflage- for protection
Some have poison glands

7. http://www. flushing. k12. mi. us/srhigh/tippettl/biology/frog/index
LUNGS:
GAS EXCHANGE

8. BREATHING WITH LUNGS is called PULMONARY (LUNG) RESPIRATION
BREATHING WITH LUNGS is called PULMONARY (LUNG) RESPIRATION

9. BREATHING THROUGH SKIN is called CUTANEOUS (SKIN) RESPIRATION
BREATHING THROUGH SKIN is called CUTANEOUS (SKIN) RESPIRATION

10. ECTOTHERMIC “cold blooded”
Body temperature is dependent on surrounding environment

11. NO CLAWS
image from:

12. Females may have black & white eggs
Image from; Laboratory/frog%20dissection/frog%20dissection_files/frame.htm
Females may have black & white eggs

13. TONGUE attached at front, not back like yours!
Imagse from:
TONGUE attached at front, not back like yours!

14. Connect ears to back of throat
image from:
Connect ears
to back of throat

15. Image from; http://faculty. clintoncc. suny. edu/faculty/Michael
Image from; Laboratory/frog%20dissection/frog%20dissection_files/frame.htm

16. image from: http://www. spc. cc. tx

17. Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html

18. Gall Bladder
Image from:

19. PANCREAS

20. SMALL INTESTINE DUODENUM Receives trypsin and bile; finishes digestion
ILEUM
Absorbs nutrients
VILLI
Increase surface area

21. LARGE INTESTINE Removes water from digestive waste; concentrates feces
LARGE INTESTINE
Removes water from digestive waste;
concentrates feces

22. KIDNEYS- Remove nitrogen waste from blood and dilute it with water to make urine; osmoregulation
Image from:

23. URINARY BLADDER STORES URINE MADE BY KIDNEYS LARVAE (Tadpoles)
Excrete AMMONIA like fish
Adult frogs excrete
UREA to conserve water

24. Frog Dissection

25. STEPS TO DISSECT PLACE FROG ON BACK AND SECURE WITH PINS
USE SCISSORS TO MAKE A CUT THROUGH THE SKIN DOWN THE CENTER
MAKE CROSS CUTS BY THE ARMS AND LEGS AND PIN SKIN DOWN

26. Place the pins

27. Using scissors, cut the layer of skin down the center of the frog

28. Cut the skin above the legs and arms. Pin the skin back.

29. Cut the muscle down the center

30. Peel back the muscle and pin it down

31. Pull back the lungs to expose the heart

32. Eggs- female

33. Identifying Organs

34. Organs

35. Books/ binders
Goal: Students will be able to safely move with and store supplies in a way that is conducive to learning and does not bother others.
Rationale: Maintaining a book/ binder correctly and safely will promote safe hallway movement and efficient management of materials.

36. Character. Community. Scholarship.
Getting out of seat
Goal: To safely and respectfully get out of seat without disturbing others’ learning time.
Raise hand and Ask before getting out of your seat.
Voice off
Walk quietly
Walk directly to destination
Keep hands, feet and comments to self
Return directly to seat
Character. Community. Scholarship.

37. Hand raising procedures
Pencil up: Sharpen pencil
TWO fingers up: Bathroom
THREE fingers up: Throw out garbage
FOUR fingers up: Hand sanitizer/ tissue
FIVE fingers/ entire hand: Ask/ answer question

38. Character. Community. Scholarship.
Listening
Goal: To listen attentively when someone is speaking or the teacher is teaching.
Eyes on speaker
Voice off
Hands and feet still
Sit up straight
Raise hand to speak or ask question
Character. Community. Scholarship.

39. Character. Community. Scholarship.
Respect Property
Goal: To respect the property of others by asking politely to borrow materials, return them as found, and replace them if necessary.
Low voice
Ask to borrow before use
Use polite words: “Please,” “Thank you,” and “May I?”
Return item to owner
Replace item if damaged
Character. Community. Scholarship.

40. Character. Community. Scholarship.
Moving Around the Room
Goal: To safely and efficiently move around a room without disturbing others’ learning time.
Ask before getting out of your seat.
Voice off
Walk quietly
Walk directly to destination
Keep hands, feet and comments to self
Return directly to seat
Character. Community. Scholarship.

41. Character. Community. Scholarship.
Addressing Teacher
Goal: To address the teacher respectfully in order to obtain information or an answer to a question.
Use Mr., Mrs., Ms. with name (ex. Mr. McKenzie)
Wait quietly for acknowledgement
Use “Excuse me” or May I?
Low voice
Say “Thank you” before leaving conversation
Character. Community. Scholarship.

42. Character. Community. Scholarship.
Clean Up
Goal: To collect and clean up materials in a neat, safe and organized manner in order to be prepared for the next activity or leave the area clean for the next person to use.
Stop work 5 minutes before departure
Walk
Low voice
Return materials in order, where found
Throw trash in trash can
Character. Community. Scholarship.

43. Character. Community. Scholarship.
Obtaining Help
Goal: To assume the responsibility of respectfully and quietly asking for assistance.
Voice off
Walk quietly
Keep hands, feet and comments to self
Walk directly to and from assistance area
Character. Community. Scholarship.

44. Character. Community. Scholarship.
Partner Share
Goal: To work cooperatively with another student and complete a task
Look at partner when speaking
Take turns speaking
Complete task together
Low voice
Use statements with “Please” and “Thank you.”
6. If you need help raise your hand
Character. Community. Scholarship.

45. Challenge Question
What adaptations permit the frog to function in its habitat of land and in water? What organs on a frog are similar to human organs?