英语词汇“triploblastic”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

triploblastic

/ˌtrɪplə(ʊ)ˈblastɪk

adjective Zoology

Having a body derived from three embryonic cell layers (ectoderm, mesoderm, and endoderm), as in all multicellular animals except sponges and coelenterates.The transition from diploblastic to triploblastic body plans hinges on the origin of mesoderm....

Common larval types are used to deduce a radially symmetrical, medusa-like organism as the common ancestor for all animal groups above coelenterates, i.e., for all triploblastic animals.
The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the Platyhelminthes, the flatworms.

Origin

Late 19th century: from Greek triploos 'threefold' + -blast + -ic.

单词	triploblastic
释义	triploblastic /ˌtrɪplə(ʊ)ˈblastɪk / adjective Zoology Having a body derived from three embryonic cell layers (ectoderm, mesoderm, and endoderm), as in all multicellular animals except sponges and coelenterates.The transition from diploblastic to triploblastic body plans hinges on the origin of mesoderm.... Common larval types are used to deduce a radially symmetrical, medusa-like organism as the common ancestor for all animal groups above coelenterates, i.e., for all triploblastic animals. The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the Platyhelminthes, the flatworms. Origin Late 19th century: from Greek triploos 'threefold' + -blast + -ic.
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