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Flanagan
on FreezingBlue Flashcards.
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Notocord
- The Longitudinal, flexible rod located between digestive tube and nerve cord.
- Gives Skeletal Support
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Dorsal Hollow Nerve Cord
- Develops into central nervous system
- Develops from ectoderm
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Pharynegeal Gill Slits
Allows water to exit the mouth without going through the digestive tract
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Amniotic Egg
Allow life cycle to be completed entirely on land. Self-sufficient.
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Ectotherm
Organism that is cold blooded.
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Endotherm
Organism that are warm blooded.
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Monotremes
Mammals that lay eggs.
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Marsupials
Mammals that have live young in an external pouch.
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Eutherians
Mammals that have longer gestation periods with complex placentas.
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Neural Tube
Embryo's undeveloped central nervous system.
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Neural Crest Cells
Contribute to formation of several human structures (i.e. teeth, sense organs etc.).
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Cephalization
Concentration of sensory and neural equipment in the head.
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Spiral Valve
Structure in intestines of Gnathostomes to increase surface area and prolong passage of food along short digestive tract.
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Oviparous
Encase eggs in protective cases and lay them outside of mom.
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Viviparous
Provide nutrients through placenta (live young).
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