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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

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226Maggenti and Gardnerplants and/or animals <strong>of</strong> one or more species in a givenarea or region that are related by environmental requirements.comose a. [L. comosus, hairy] Having hair; hairy; ending in atuft; comate.compass n. [OF. compasser, go around] (ECHINOD: Echinoidea)A slender radial piece <strong>of</strong> the lantern <strong>of</strong> Aristotle thatpasses outward from the vicinity <strong>of</strong> the esophagus.compact v.t. [L. compaginatus, joined] To be close together;to join firmly; to consolidate.compartmental plate (ARTHRO: Crustacea) One <strong>of</strong> severalrigidly articulated plates forming part <strong>of</strong> the shell wall <strong>of</strong>sessile barnacles.compensatory sac see contractile vesselcompetence n. [L. competere, to compete for] The ability <strong>of</strong>an embryonic primordium to differentiate in a specific direction,under appropriate stimuli.competition n. [L. competere, to compete for] The simultaneousendeavor <strong>of</strong> two or more organisms to survive whenthe essential resource <strong>of</strong> the environment is not sufficientfor both.competitive exclusion The principle that no two species cancoexist at the same time in the same locality when theirecological requirements are identical; Gause's rule; exclusionprinciple.complanate a. [L. complanatus, flattened] Flattened; level.complement see chromosome complementcomplemental male In certain annelids and barnacles, a smallmale that inhabits the same area occupied by a hermaphroditicform.complemental reproductive see supplementary reproductivecomplementation n. [L. complementum, something thatcompletes] The appearance <strong>of</strong> wild-type phenotype in anorganism or cell containing two different mutations combinedin a hybrid diploid.

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