Majors animal: Anatomy of a roundworm (matching)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Mouth | Ingestion of food
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| Pharynx | Muscular region of digestive tract that "pumps" food through the mouth and into the intestine
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| Intestine | Ribbonlike digestive tract where absorption of nutrients occurs
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| Anus | Elimination of indigestible wastes (egesion)
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| Lateral lines | Longitudinal canals that function as the excretory system of the roundworm, releasing nitrogenous wastes in the form of ammonia and urea
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| Pseudocoelom | Body cavity lined on the inside by a layer of gastrodermis and on the outside by a layer of mesoderm
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| Testis | Produces sperm
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| Vas deferens | Stores mature sperm and transports them to seminal vesicle
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| Seminal vesicle | Enlarged tube representing terminal portion of male reproductive tract, which transports mature sperm out of the nematode
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| Genital pore | Point of entry for sperm and opening through which fertilized ova are released from the body
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| Vagina | Terminal portion of female reproductive tract, which receives sperm from males and directs ova through genital pore
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| Branched uterus | Site where developing ova mature before being released
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| Oviduct | Repository for ova produced in ovary until fertilization
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| Ovary | Produces ova
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