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Hemichordata : Chordata : Lophophorate : Hemichordata
invert zoology
8
Biology
Undergraduate 3
09/10/2014

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Cards

Term

P- Hemichordata

 

Definition

Dolichoglossus

 

Proboscis (head), collar, trunk

Term
P- Chordata
Definition
Chordates, notochord is flexible, incompressible, DHN chord formed from invaginated ectoderm, pharyngeal gills for suspension feeding/respiration, postana tail, endostyle makes iodated compounds (thyroid)
Term
SP- Cephalochordata
Definition

"Lancelets" (P.2-9)

notochord in head, marine, suspension feeders, bottom dwellers, burrow/swim

Term
Branchiostoma / "Amphioxus"
Definition

SubP- Cephalochordata

[image]

 

Term
SubP- Tunicata (Urochordata)
Definition
marine, suspension feeders, solitary/colonial, cuticle (tunic)
Term
Ciona & Ecteinascidia
Definition
SubP- Tunicata - buccal siphon, pharyngeal basket, endostyle, dorsal lamina, instine, anus, atrial siphon, tunic
[image]

 

 

Term
Ascidian metamorphosis
Definition

Tad pole!!

  1. Tadpole larvae- adhesive papilla (front- attaches to substrate)
  2. Early metamorphosis (pig)
  3. Late metamorphosis (dog)
  4. Loss of tail / notochord / DHNchord during development
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