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關(guān)注:1
2013-05-23 12:21
求翻譯:絕大多數(shù)的海膽都是雌雄異體的,海膽的五個(gè)生殖腺位于體腔的步帶區(qū),貼近硬殼內(nèi)緣且連在體腔壁上。它們會(huì)將精子及卵子排出海水中受精,沙錢(qián)在生殖孔附近有細(xì)長(zhǎng)的生殖疣足,把精子及卵子送到沙面,協(xié)助增加受精機(jī)會(huì)。部份的海膽會(huì)把受精卵放在圍口部或圍肛部附近,以棘刺包圍和保護(hù)這些卵。是什么意思?![]() ![]() 絕大多數(shù)的海膽都是雌雄異體的,海膽的五個(gè)生殖腺位于體腔的步帶區(qū),貼近硬殼內(nèi)緣且連在體腔壁上。它們會(huì)將精子及卵子排出海水中受精,沙錢(qián)在生殖孔附近有細(xì)長(zhǎng)的生殖疣足,把精子及卵子送到沙面,協(xié)助增加受精機(jī)會(huì)。部份的海膽會(huì)把受精卵放在圍口部或圍肛部附近,以棘刺包圍和保護(hù)這些卵。
問(wèn)題補(bǔ)充: |
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2013-05-23 12:21:38
The vast majority of sea urchins are dioecious, the five gonads of sea urchins in the body cavity of step with the area, close to the hard shell inner edge and even in the body cavity wall. They are the sperm and the fertilized egg from seawater, sand dollars in the gonopore near the genital warts o
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2013-05-23 12:23:18
Most of the sea urchins are females, and the variant of the sea urchin gonads are located in 5 of the body cavities with hard-shell case, and close to the edge and even on the wall in body cavities. They will be discharged from the sperm and eggs fertilized in the water, and sand holes in the reprod
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2013-05-23 12:24:58
The overwhelming majority sea urchin all is the dioecism, the sea urchin five gonads are located the body cavity the ambulacrum area, in the drawing close to hard shell the reason also continually on the body cavity wall.They can discharge the sperm and the egg in the sea water the fertilization, th
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2013-05-23 12:26:38
Most sea urchins are dioecious, five of the Sea Urchin gonads in the body cavity of a stripe, closer to the crust edge and even on the cavity wall. Discharged they will take the sperm and egg fertilization in seawater, Sha Qian near the hilum are genital warts of thin feet, take sperm and eggs to th
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2013-05-23 12:28:18
正在翻譯,請(qǐng)等待...
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