Thursday, October 8, 2009

Metazoan

Metazoan: Any animal that undergoes development from an embryo stage with three tissue layers, namely the ectoderm, mesoderm, and endoderm. The term applies to all animals except the sponges.
at
Labels: , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

talk nineteen to the dozen

  to speak rapidly and without stopping

  • abstemious
    Marked by, or spent in, abstinence ; as, an abstemious life.
  • Nureongi
    Nureongi (누렁이) and Hwangu (황구; 黃狗) are Korean terms meaning "Yellow Dog" used to refer to tannish mongrel or landrace of dog in...
  • acrolect - mesolect - basilect
    Three portions of the post-creole continuum : acrolect ( linguistics ) The variety of speech that is considered the standard form. m...