metazoa

• 后生动物，即多细胞动物，是动物界中除原生动物以外的一个亚界。其细胞分化为组织和器官，通常具有消化腔和神经系统。

A taxonomic group comprising multicellular animals whose cells are differentiated into tissues and organs, typically possessing a digestive cavity and a nervous system.

不可数 · 专有名词

1. C2formalscientific

   A major taxonomic group comprising all multicellular animals whose cells are differentiated into tissues and organs, typically possessing a digestive cavity and a nervous system.

   后生动物

   • Metazoa include all animals from sponges to humans.
   • The study of Metazoa is fundamental to understanding animal evolution.
   • Most Metazoa have complex body plans with specialized organ systems.

   反义词protozoa