Questions and Answers
What is the function of the Crop in an earthworm?
What do Seminal Vesicles store?
sperm
What is the purpose of the Citellum?
egg-case
What is the main function of the Intestine in an earthworm?
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What does the Gizzard do?
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Aortic Arches go through the heart and worm's body.
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What is the function of the Pharynx?
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What do Seminal Receptacles do?
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Study Notes
Earthworm Organ Functions
- Crop: Functions as a food storage organ, allowing the earthworm to accumulate food before digestion.
- Seminal Vesicles: Specialized organs that store sperm, crucial for reproduction in earthworms.
Reproductive Structures
- Clitellum: A thickened, glandular section of the body that secretes a mucous layer to form an egg case for reproductive purposes.
- Seminal Receptacles: Structures that receive sperm from other earthworms, playing a vital role in the fertilization process.
Digestive System
- Intestine: Responsible for digestion and nutrient absorption, breaking down food after it passes through the crop and gizzard.
- Gizzard: Acts as a grinding organ, mechanically breaking down food, aided by ingested soil particles.
Nutrient and Circulatory Pathways
- Aortic Arches: Often referred to as the "hearts" of the earthworm, these are muscular structures that pump blood, but do not traverse the worm's body as typical hearts do.
- Pharynx: An organ that functions to swallow food, acting as the entry point to the digestive system.
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Description
Explore the fascinating organ functions and systems of earthworms in this quiz. Topics include the digestive system, reproductive structures, and nutrient pathways, highlighting how these components work together for survival and reproduction. Test your knowledge on earthworm biology!
