托福單詞speciation什么意思-speciation詞組短語(yǔ)_例句_同義詞

speciation意思

n.物種形成

speciation詞組短語(yǔ)

extrinsic speciation外因性物種的形成

apomictic speciation內(nèi)因成種

Stasipatric speciation滯域成種

Directed speciation定向成種

chromosomal speciation染色體種的分化;染色體變化成種;

infraspecific speciation抗體

secondary speciation次級(jí)物種形成

speciation近義詞

n.

evolution,organic evolution,phylogeny,phylogenesis

speciation例句

1.Polyploidy is a mechanism often attributed to causing some speciation events in sympatry.

多倍性常被當(dāng)作引起在同一地區(qū)并存的物種發(fā)生物種形成事件的一種機(jī)制。

2.First,there is speciation(species-splitting or cladogenesis),caused by geographical isolation or some other mechanism.

首先，因地理隔離或其它一些機(jī)制導(dǎo)致物種形成（物種分裂或系枝進(jìn)化）。

3.This conclusion agress with the viewpoint that this species is on the speciation stage of migration towards north.

這一結(jié)論支持該種目前正處于向北遷移的分化階段的觀點(diǎn)。

4.Jolley(1993)is a study of dissolved phosphorus speciation in the lower molongolo sewage treatment plant(Canberra,Australia)detected no triphosphate in raw sewage entering the plant.

Jolley(1993)進(jìn)行得一項(xiàng)研究中在溶解磷形態(tài)下molongolo污水處理廠（堪培拉，澳大利亞）未發(fā)現(xiàn)任何未經(jīng)處理得污水中有三磷酸鹽進(jìn)入工廠。

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