- Zoology Lab
Ascaris (Roundworm) and Lumbricus (Earthworm)

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Ascaris

Uterus - Intestine - Oviducts - Vagina

Lumbricus

Intestines - Gizzard - Crop - Esophagus - Pharynx - Hearts (Aortic Arches) - Ventral Blood Vessel - Seminal Vesicles - Seminal Receptacles - Septa - Segments - Ventral Nerve Chord