13.07.2015 Views

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 583morphospecies n.pl. [Gr. morphe, form; L. species, kind] Atypological species based on morphological differences. seephenon.morphotype n. [Gr. morphe, form; L. typos, type] The typespecimen <strong>of</strong> one <strong>of</strong> the forms <strong>of</strong> a dimorphic species.morula n. [L. dim. morus, mulberry] In embryology, consisting<strong>of</strong> a cluster <strong>of</strong> cleaving blastomeres; stage preceding blastula.morular cell (BRYO) A cell filled with refringent spheres in theperitoneal membrane and funicular strand.morular organ see columellamorulation n. [L. dim. morus, mulberry] Formation <strong>of</strong> themorula during holoblastic egg cleavage.morulit see nucleolusmosaic n. [Gr. Mousaios, <strong>of</strong> the Muses] 1. An organism composed<strong>of</strong> two or more cell lines <strong>of</strong> different genetic orchromosomal constitution, both cell lines being derivedfrom the same zygote; genetic mosaic. see chimera. 2. Anindividual displaying characteristics <strong>of</strong> more than one sexor polymorphic form; phenotypic mosaic.mosaic evolution Evolution that involves differential rates fordifferent structures, organs, or other components <strong>of</strong> thephenotype.mosaic theory (ARTHRO) The theory explaining the function <strong>of</strong>the compound eye, with the numerous ommatidia receivinga portion <strong>of</strong> the image and then combining them into a totalimage in the brain.moschate a. [L. moschus, musk] Having an odor similar tomusk.mother cell A precursory cell or metrocyte.mother genus An original genus from which others have derivedby nomenclatorial division.motile a. [L. movere, to move] Capable <strong>of</strong> spontaneousmovement.motor nerve see motor neuronmotor nervous system A part <strong>of</strong> the nervous system lying

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!