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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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314Maggenti and Gardnerparasite.ecospecies n. [Gr. oikos, house; L. species, kind] A group <strong>of</strong>populations in an ecological niche that are among themselves,and with other ecospecies, capable <strong>of</strong> interbreedingwithout loss <strong>of</strong> fertility or vigor in the <strong>of</strong>fspring; an ecotype.ecosystem n. [Gr. oikos, house; systema, an ordered arrangement<strong>of</strong> things] Any entity or natural unit that includesliving and non-living parts interacting to produce astable system in which the exchange <strong>of</strong> materials betweenthe living and non-living parts follows circular paths; thebiotic community and its habitat.ecotone n. [Gr. oikos, house; tonos, stretch, brace] A transitionarea between two adjacent ecological communities orbiomes; usually containing many organisms from both, aswell as some characteristic <strong>of</strong> (sometimes restricted to) theecotone.ecotype n. [Gr. oikos, house; typos, type] A local race arisingas a result <strong>of</strong> genotypical response to a particular habitat;an ecospecies.ecsoma n. [Gr. ek, out <strong>of</strong>; soma, body] (PLATY: Trematoda)The telescoping posterior part <strong>of</strong> the body.ectad adv. [Gr. ektos, outside; L. ad, toward] From within towardthe exterior. see entad.ectadenia n.pl. [Gr. ektos, outside; aden, gland] (ARTHRO: Insecta)A male accessory gland, ectodermal in origin;ectodene glands. see mesadenia.ectal a. [Gr. ektos, outside] Exterior; outer surface <strong>of</strong> the bodyor body parts.ectally adv. [Gr. ektos, outside] Near to or towards the bodywall. see ental.ectoblast n. [Gr. ektos, outside; blastos, bud] The outer wall<strong>of</strong> a cell; ectoderm; epiblast.ectochone n. [Gr. ektos, outside; chone, funnel-shaped hollow](PORIF) A funnel-shaped chamber into which the ostiaempty.ectocochleate a. [Gr. ektos, outside; L. cochlea, spiral] (MOLL)An externally coiled shell, as in Nautiloidea.

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