Grade 8 Frog Dissection Worksheet

Grade 8 Frog Dissection Worksheet

Carefully read all instructions and questions before answering. Use complete sentences where appropriate. Refer to your dissection guide and observations as needed.

1. Which of the following is NOT a primary external feature of a frog?

2. Observe the image of the frog below. Which letter points to the tympanic membrane?

3. The frog's tongue is attached to the front of its mouth, allowing it to extend a great distance to catch prey. This is an adaptation for its   lifestyle.

4. The large organ responsible for detoxifying harmful substances and producing bile in the frog is the  .

5. Small, finger-like projections found in the small intestine that increase surface area for nutrient absorption are called  .

6. Describe the initial incision you would make to open the frog's abdominal cavity for dissection. Include the direction and approximate location.

7. Upon opening the abdominal cavity, you notice a yellowish, finger-like structure. What is this structure, and what is its primary function?

Match each internal organ with its primary function.

12. Frogs have a three-chambered heart.

13. The cloaca is the common exit point for digestive, urinary, and reproductive systems in a frog.