外来植物

The results indicated that there are has 21 kinds of alien invasive plant species which belonging to 21 generas and 13 families in Xiushan region, the alien plants has an important influence on the area where change farmland into woodland and the farm land that the condition of being unseeded, and the total coverage of the alien plant mostly reached 100%.

11入侵种是指在引入地建立了种群，改变或威胁本地生物多样性，对生态系统的结构造成了明显的损害和影响的外来种。u 1入侵植物就是指具有从原来的分布区域扩展到一个新的地区，在新的区域里其后代可以繁。。。。。。

And 32 families, 67 genera and 77 species of vascular plants were recorded.

发现外来入侵植物25种，占调查种数的32.47％，应引起注意。

The chromosome karyotypes of alien invasive species Alternanthera philoxeroides were observed and analyzed through root tips squash technology.

对外来入侵植物喜旱莲子草的染色体核型进行了分析。

Exotic species ; Cabomba caroliniana ; distribution range ; coexistence of plants ; fresh water type ; invasive route

外来种；水盾草；分布范围；共存植物；水域类型；入侵途径

By the end of World War II, Bermuda was ransacked by housing developers, exotic pests, and a native flora wrecked by imported garden species. The residents of Bermuda and the world's scientific community were stunned, then, in 1951 by the announcement that the cahow -- a gull-size seabird -- had been rediscovered on the outer cliffs of the island archipelago.

第二次世界大战结束时，百慕大群岛被住房开发商彻底侵占，外来昆虫和当地植物被进口的花园物种所毁灭。1951年关于该群岛岛屿外的悬崖上发现了百慕大圆尾鹱——一种海鸥大小的海岛——的通告令当地居民和全球科学界极为震惊。

By the end of World War II, Bermuda was ransacked by housing developers, exotic pests, and a native flora wrecked by imported garden species. The residents of Bermuda and the world's scientific community were stunned, then, in 1951 by the announcement that the cahow -- a gull-size seabird -- had been rediscovered on the outer cliffs of the island archipelago.

第二次世界大战结束时，住房开发商彻底侵占了百慕大群岛，外来昆虫和当地植物被进口的花园物种所毁灭。1951年关于该群岛岛屿外的悬崖上发现了百慕大圆尾鹱——一种海鸥大小的海鸟——的通告令当地居民和全球科学界极为震惊。

By the end of World War II, Bermuda was ransacked by housing developers, exotic pests, and a native flora wrecked by imported garden species. The residents of Bermuda and the world's scientific community were stunned, then, in 1951 by the announcement that the cahow -- a gull-size seabird -- had been rediscovered on the outer cliffs of the island archipelago.

第二次世界大战结束时，住房开发商彻底侵占了百慕大群岛，外来害虫和当地植物被进口的花园物种所毁灭。1951年关于该群岛岛屿外的悬崖上发现了百慕大圆尾鹱——一种海鸥大小的海岛——的通告令当地居民和全球科学界极为震惊。

By the end of World War II, Bermuda was ransacked by housing developers, exotic pests, and a native flora wrecked by imported garden species. The residents of Bermuda and the world's scientific community were stunned, then, in 1951 by the announcement that the cahow -- a gull-size seabird -- had been rediscovered on the outer cliffs of the island archipelago.

第二次世界大战结束时，住房开发商、外来害虫彻底侵占了百慕大群岛，当地植物被进口的花园物种所毁灭。1951年，该群岛外岛的悬崖上发现了百慕大圆尾鹱——一种海鸥大小的海鸟——这通告令当地居民和全球科学界极为震惊。

By the end of World War II, Bermuda was ransacked by housing developers, exotic pests, and a native flora wrecked by imported garden species. The residents of Bermuda and the world's scientific community were stunned, then, in 1951 by the announcement that the cahow -- a gull-size seabird -- had been rediscovered on the outer cliffs of the island archipelago. The cahow was thought to be extinct for centuries.

第二次世界大战结束时，住房开发商、外来害虫彻底侵占了百慕大群岛，当地植物被进口的花园物种所毁灭。1951年，在该群岛外岛的悬崖上发现了百慕大圆尾鹱——一种海鸥大小的海鸟——这一通告令当地居民和全球科学界极为震惊，因为人们认为百慕大圆尾鹱已经灭绝几个世纪了。

The effects of temperature and illumination on seed germination of Chenopodium ambrosioides, an invasive alien harmful weed, and changes of germination capacity during its storage under different temperature were studied.

研究了不同光照和温度对外来有害植物土荆芥Chenopodium ambrosioides种子萌发率的影响及种子在不同贮藏时间和不同贮藏温度下萌发率的变化。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。