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Bio 106 Nematode function/structure
Bio 106 Nematode structures
24
Zoology
Undergraduate 2
10/30/2017

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Cards

Term
Phylum
Genus
Definition
Nematoda
Ascaris
Term
Body Type
Layers
Definition
Pseudocoelomate
Triploblastic
Term
Cuticle
Definition
Non-living protective coating
Term
Reproduction
Definition
Sexual: Dioecious (males, small w/ curved posterior end and spicules/ females, larger)
Finite number of cells
Term
Feeding
Definition
Endoparasite (humans, pigs)
Term
Locomotion
Definition
Term
Evolutionary Milestones (2)
Definition
Complete digestive tract (mouth to anus)
Pseudocoelom
Term
Hydrostatic Skeleton
Definition
Enclosed, pressurized fluid filled coelom
Term
Spicules
Definition
Hold female during copulation
Term
Triradiate Lips
Definition
Three lip like plates around terminal mouth
Term
Lateral lines
Definition
2 longitudinal canals running length of body
Excretory system (Ammonia and Urea)
Term
Mouth
Definition
Ingestion of food
Term
Pharynx
Definition
Pumps food through mouth into intestine
Term
Intestine
Definition
Absorption of nutrients
Term
Anus
Definition
Egestion
Eliminates indigestible waste
Term
Testis
Definition
Produces sperm
Term
Vas Deferens
Definition
Stores mature sperm and transports to seminal vesicle
Term
Seminal Vesicle
Definition
Transports mature sperm out of nematode
Enlarged tube
Term
Genital Pore
Definition
Mature sperm and fertilized eggs enter and released through this
Term
Vagina
Definition
Receives sperm from males and directs to eggs through genital pore
Term
Branched Uterus
Definition
Developing eggs mature before being released
Term
Oviduct
Definition
Repository for eggs until fertilizaion
Term
Ovary
Definition
Produces eggs
Term
Dorsal/Ventral Nerve Cord
Definition
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