Earthworm Anatomy Worksheet
Explore the external and internal anatomy of an earthworm with this Grade 8 science worksheet.
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Earthworm Anatomy Exploration
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Read each question carefully and answer to the best of your ability. Refer to the diagrams provided to help you understand the earthworm's anatomy.
Observe the image of the earthworm's external anatomy below.
1. What is the clitellum, and what is its function?
2. How do earthworms move, and what external structures aid in their movement?
Use the image of the earthworm's cross-section to help fill in the blanks.
3. The earthworm's digestive system includes the pharynx, esophagus, crop, gizzard, and .
4. Respiration in earthworms occurs through their moist .
5. The main blood vessel that runs along the dorsal side of the earthworm is the blood vessel.
6. Which of the following is responsible for grinding food in an earthworm?
Crop
Intestine
Gizzard
Pharynx
7. Earthworms are hermaphroditic, meaning they have:
Only male reproductive organs
Only female reproductive organs
Both male and female reproductive organs
No reproductive organs
Indicate whether each statement is True (T) or False (F).
8. Earthworms have a closed circulatory system.
True
False
9. The clitellum is located at the anterior (head) end of the earthworm.
True
False
10. Describe the primary function of the crop and gizzard in the earthworm's digestive system.