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  • diplohaplontic — adjective Describing a life cycle that has alternating haploid and diploid phases …   Wiktionary

  • diplohaplontic — dip·lo·hap·lon·tic …   English syllables

  • Alternation of generations — (also known as alternation of phases or metagenesis) is a term primarily used in describing the life cycle of plants (taken here to mean the Archaeplastida). A multicellular sporophyte, which is diploid with 2N paired chromosomes (i.e. N pairs),… …   Wikipedia

  • Biological life cycle — A life cycle is a period involving 1 generation of an organism through means of reproduction, whether through asexual reproduction or sexual reproduction. In regard to its ploidy, there are 3 types of cycles: * haplontic life cycle * diplontic… …   Wikipedia

  • Aglaophyton — Taxobox fossil range = Early Devonian image caption = Reconstruction of Aglaophyton , illustrating bifurcating axes with terminal sporangia, and rhizoids. regnum = Plantae divisio = unspecified classis = unspecified ordo = unspecified familia =… …   Wikipedia

  • Rhynia — Taxobox fossil range = Early Devonian image caption = Reconstruction of Rhynia gwynne vaughanii , redrawn afterP. Kenrick, P.R. Crane (1997) The origin and early diversification of land plants. A cladistic study. Smithsonian Institution Press,… …   Wikipedia

  • life cycle — 1. Biol. the continuous sequence of changes undergone by an organism from one primary form, as a gamete, to the development of the same form again. 2. a series of stages, as childhood and middle age, that characterize the course of existence of… …   Universalium

  • plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

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