Grade 12 Frog Dissection Worksheet
A comprehensive worksheet for Grade 12 biology students covering frog external and internal anatomy, dissection procedures, and physiological functions.
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Grade 12 Frog Dissection Worksheet
Name:
Date:
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Carefully read all instructions and questions before beginning. Use the provided diagrams to assist you in identifying structures. Answer all questions thoroughly and accurately.
1. Which of the following external structures is primarily responsible for hearing in a frog?
Nictitating membrane
Tympanum
External nares
Vomerine teeth
2. Observe the external anatomy of the frog below. Identify and label the structures indicated by the arrows.
A.
B.
C.
3. The primary organ for nutrient absorption in the frog is the .
4. The is a large, three-lobed organ that produces bile and detoxifies substances.
5. Air enters the frog's respiratory system through the external nares and passes into the .
6. Describe the function of the fat bodies found within the frog's abdominal cavity.
7. Explain the circulatory pathway of blood through the frog's three-chambered heart, starting from the body and ending back in the body.
8. Frogs have a diaphragm that aids in respiration.
True
False
9. The cloaca is the common exit point for digestive, urinary, and reproductive systems in frogs.
True
False
10. Refer to the internal anatomy diagram below. Identify the organs and describe their primary function.
A. Organ: Function:
B. Organ: Function:
C. Organ: Function:
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