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词汇 metagenesis
释义

Definition of metagenesis in English:

metagenesis

noun ˌmɛtəˈdʒɛnɪsɪsˌmɛdəˈdʒɛnəsəs
mass nounBiology
  • The alternation of generations between sexual and asexual reproduction.

    〔生〕世代交替

    Example sentencesExamples
    • Ctenophora or comb-jellyfish are completely different creatures which do not have metagenesis and do not bear cnidae.
    • Any level of kosmos, then, has a deep structure consisting of at least two countercurrent structural flows: genesis and metagenesis.
    • It is the life cycle consisting of an asexual and a sexual generation (metagenesis) of the cycliophorans that makes the phylum unique.
    • However, unlike cnidarians, ctenophores possess rows of cilia and a unique, complex sensory organ and lack cnidae and metagenesis.
    • Checkpoints in the life-cycle of Cassiopea spp.: control of metagenesis and metamorphosis in a tropical jellyfish.

Derivatives

  • metagenetic

  • adjective ˌmɛtədʒəˈnɛtɪk
    Biology
    • However, if innate ability were not only sufficient but necessary, it is obvious from a metagenetic analysis of human history that we would have died out long ago.
      Example sentencesExamples
      • The embryo produced directly from the egg in a metagenetic series, especially the larva of a tapeworm or other parasitic worm.
      • The life cycle of Chrysaora lactea is metagenetic and was completed with laboratory rearing observations.
      • Abstract Experimental data reveal that most, if not all, major events in the metagenetic life-cycle of Cassiopea spp. at these checkpoints depend on the interaction with specific biotic and physical cues.
      • It is, at least, geared towards an understanding of mutual metagenetic affectations in an experiment of non-exclusion.

Origin

Late 19th century: modern Latin.

Definition of metagenesis in US English:

metagenesis

nounˌmedəˈjenəsəsˌmɛdəˈdʒɛnəsəs
Biology
  • The alternation of generations between sexual and asexual reproduction.

    〔生〕世代交替

    Example sentencesExamples
    • However, unlike cnidarians, ctenophores possess rows of cilia and a unique, complex sensory organ and lack cnidae and metagenesis.
    • Checkpoints in the life-cycle of Cassiopea spp.: control of metagenesis and metamorphosis in a tropical jellyfish.
    • Any level of kosmos, then, has a deep structure consisting of at least two countercurrent structural flows: genesis and metagenesis.
    • It is the life cycle consisting of an asexual and a sexual generation (metagenesis) of the cycliophorans that makes the phylum unique.
    • Ctenophora or comb-jellyfish are completely different creatures which do not have metagenesis and do not bear cnidae.

Origin

Late 19th century: modern Latin.

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