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单词 sporophyte
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Examples ofsporophyte

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These methods have also considered the generation difference between the maternalsporophyteand the embryo/endosperm (offspring) tissue.
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I found no selective effect of the rhizome on uptake, and no evidence of recirculation of nutrient ions from the leaves to the growingsporophyte.
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The higher percentage of mega-sporocarps in this treatment was an added advantage because it is the mega-sporocarps that produce sporophytes after germination.
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It has mature sporophytes as small as and as large at in length.
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In land plants and some algae, there is an alternation of generations such that meiosis in the diploidsporophytegeneration produces haploid spores.
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Unlike plants at the bryophyte grade, their sporophytes were branched.
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It is in the diploidsporophytethat vascular tissue develops.
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Further divisions produce three basic regions of thesporophyte.
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After fertilisation, the immaturesporophytepushes its way out of the archegonial venter.
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It takes about a quarter to half a year for thesporophyteto mature.
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After fertilization, the ovule contains a diploid zygote and then, after cell division begins, an embryo of the nextsporophytegeneration.
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This distinguishes polysporangiophytes from liverworts, mosses and hornworts, which have unbranched sporophytes each with a single sporangium.
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Stomata are present in thesporophytegeneration of all land plant groups except liverworts.
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As a result, the female reproductive organs, and the sporophytes that develop within them, are always located on the dorsal surface of the plant.
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These may both be borne on the same monoecioussporophyteor on different sporophytes in dioecious species.
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In ferns, both thesporophyteand the gametophyte are capable of living independently, but the dominant form is the diploidsporophyte.
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When thesporophytehas developed all three regions, the seta elongates, pushing its way out of the archegonium and rupturing it.
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Another unusual feature of the liverwort life cycle is that sporophytes (i.e. the diploid body) are very short-lived, withering away not long after releasing spores.
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Fire moss sporophytes appear early in the spring, as soon as the snow melts.
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The zygote divides by mitotic division and grows into asporophytethat is diploid.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2025/1/19 2:54:44