Embryology
Animal tree – Zygote → Blastula → Gastrulation
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| Cell embryology slide. |
Protostome - initial opening (blastopore) develops into the mouth.
Deuterstome - initial opening develops into the anus.
Archenteron - primitive digestive tract.
Blastopore - opening to the archenteron.
Endoderm - outer layer of the early embryo.
Ectoderm - inner layer of the early embryo.
Chordata - deuterstome
Echinodermata - deuterstome
Arthropoda - protostome
Mollusca - protostome
Annelida - protostome
Nemotada - protostome
Platyhelminthes - protostome
Cnideria
Porifera
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