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The larval preference on Porites and the adult recognition of coral tissues are mechanism of host specificity.

幼生会选择微孔珊瑚以及成螺有辨识微孔珊瑚的能力是造成紫口珊瑚螺分布专一性的机制，此外成螺辨识微孔珊瑚的能力是受到珊瑚组织的影响。

The symbiosis between coral-inhabiting snail Coralliophila violacea and Porites spp.Different host specificity is commonn in symbiotic organism. Larval preference, post-settlement mortality and juvenile preference are the possible mechanisms.

共生生物的分布常有不同程度的专一性，而幼生时期的选择、著床后的死亡率、幼体或成体时期的选择可能是造成这种现象的机制，此外共生生物的适应会和宿主有密切的关系。

Differences among larval durations were significant, while no significant difference in pupal duration were detected.

喂 10 %蜂蜜时，雌蛾寿命、交配率和产卵量在四个幼虫食料组之间没有显著差异。

The mRNA level of per gene under high temperature was higher than that under low temperature when the larval and pupal stages were under the same photoperiod.

温度和光照是昆虫近日节律基因表达的授时因子，也是影响家蚕滞育的决定因素。

Expression of Bm-l(3)neo18 was down-regulated at egg stage, and up-regulated at larval, pupal and moth stages. Besides, a tissue-specific differential expression was also observed.

该基因除在家蚕卵期的表达量较低外，在幼虫、蛹和蛾期均有较高表达，且存在组织差异性。

Resistance. The results indicated that larval mortality of the transgenic cottons on the insect of the second instar feeding with Zhongmiansuo 41 was significant higher than on Zhongmiansuo 23, and the mortality of the rest of instar larvae, the period of larvae,the pupate rate of larvae and the rate of larva developed into moth of S.litura hadno significant difference compared with control.

室内应用中棉所 45 、中棉所 41 两种转双价基因棉品种与对照品种中棉所 23 的顶端展开的第 4 张叶片，分别饲喂斜纹夜蛾 Spodoptera litura 幼虫，考察对幼虫、蛹、成虫的影响，编制并分析实验种群生命表，明确上述两种转双价基因棉对斜纹夜蛾的抗性作用。

The bioassay resultshowed the three kinds of PG tested could prolong the duration of larval stadium.Salicortin and deltoidin could reduce the survival rate of larvae,pupate rate andgrowth weight evidently,especially for salicortin at high lever(more than 2%).

结果表明，3种酚甙对幼虫生长发育均存在不同程度的负作用，并有剂量效应；3种酚甙均可延长幼虫虫期；柳皮甙和美洲黑杨甙可明显降低幼虫存活率、体重增加率和化蛹率；尤其是柳皮甙在高含量条件下(大于2％)作用更为明显。

The Ikonos data and the QuickBird data identified every rice land aquatic habitat by village and strata. Ikonos and QuickBird visible and NIR data of geo-referenced riceland An. arabiensis aquatic habitats can develop and implement an Integrated Vector Management program based on larval productivity.

因此，可根据QuickBird 0.6 m卫星数据的土地利用和覆盖指数和阿拉伯按蚊滋生点幼虫的增殖特性，在当地建立和应用媒介综合防治系统(IVM-Integrated Vector Management)。

All emergence index were higher markedly than control group (P.05), besides, the shrimp larvae showed high quality anduniformity, the amount of "OK" brand that was used in every group during cultivation was 48.34%,58.50%,48.81%,and 49.5% less than that of "Bonasse" brand, however, the former had the better larval nursery effect than the latter obviously. It was more recommendable that using the compound blended with formulated diet of 80% microencapsulated diets of "OK" brand and 20% rotifera than only using microencapsulated diets of "OK" brand.

另外，在培育过程中投喂欧开牌微胶囊饲料的各实验组其饲料投喂量分别比博尚牌饲料少用48.34％、58.50％、48.81％和49.5％，但其育苗效果明显好于后者。80％欧开牌微胶囊和20％卤虫配合使用培育凡纳对虾幼体的效果比单独使用欧开牌微胶囊饲料培育效果好：前者的出苗率，出苗时平均尾重，平均体长分别高出后者38.73％、利用截欢囊句料培育凡姑对炸幼体苟比软研究25%和7.8%，各项出苗指标也明显高于后者(P 。05)。

A certain degree of stem solidness results in damaged and desiccated eggs and impaired larval movements.

一定的茎秆硬度会致使虫卵损伤和脱水，削移幼虫的移动。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。