单词:bioinvasive
单词:bioinvasive 相关文章
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Researchers Find Bright Side to Some Invasive Species Non-native species present threats to natural environments across the world by pushing out native organisms. Their presence can seriously damage ecosystems that provide clean water, food and other
Darwin's fabled isles, the Galapagos, are in need of a makeover. And removing invasive species of plants tops the to-do list for the islands restoration. But six species that were set to be exterminated have gotten a reprieve. Because a new study fin
蒋健棠听说学英语 Chapter16:The wildlife biologist
We've lost our dog. Luckily he has a tag around his collar and he is also microchipped. It's a smart idea to get your dog microchipped. The microchip is inserted under the skin of the animal. It is done at a veterinarian's office or an animal shelter
Natalie: Why are you wearing that gas mask? Anton: Im getting used to it. If we ever have a bioterrorist attack, Ill be ready. Want to try one on? Natalie: No, thanks. If we get involved in biological warfare, I think well have some warning. Anton: T
85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson (Start at 1'04
By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode
Invasive species get a bad rapbut we humans are usually to blame for their spread. Take Japanese stiltgrass, an invasive that arrived from Asia nearly 100 years ago as a packing material for porcelain. When it creeps into forests, it forms dense carp
By Melinda Smith Washington, DC 27 July 2006 watch Surgery report Having surgery used to mean the permanent memento of an ugly scar. But the trend in modern surgery is something called M.I.P., which stands for Minimally Invasive Procedure. There are
Commerical fisherman Chad Isaak and a partner haul in a boatload of invasive Asian Carp, Jul 2010 The multi-billion-dollar commercial fishing industry in the Great Lakes region of the United States employs more than 800,000 people, but is threatened
There's a good reason why people should be concerned about having a healthy environment containing lots of animal and plant species. A new study says the loss of biodiversity may make humans more vulnerable to infectious diseases. Biodiversity is one
Don: Today, on A Moment of Science, the Ocean's Most Wanted. Sure, they might seem innocent and downright lovely in your aquarium, but released into the wild, your plants and fish can knock aquatic ecosystems right out of balance. Today's invasive sp
By Carol Pearson Washington 11 October 2007 One third of the land in the United States belongs to the public. And once a year Americans get a chance to help make these public lands beautiful and healthy for generations to come. VOA's June Soh visited
AGRICULTURE REPORT - Biocontrols, Part 2 By Mario Ritter Broadcast: Tuesday, April 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biocontrols are the way nature seeks ba
Lionfish are taking over coral reefs in the Caribbean and Atlantic. Here, Lad Akins catches one. In the waters of the Caribbean Sea, a voracious invasive species called the lionfish is threatening to overtake the reefs. Conservation groups are fighti
俄罗斯莫斯科的一位生物能量学教授近日宣布,他已研制出一种能够有效延缓衰老的不老药,并有望于几年内上架销售。这位科学家用40年的时间研制出一种抗氧化剂,能够有效抑制氧分子对人
Okay, here it is. 好啦,就是这里啦。 The date is June 24th. 今天是六月二十四号。 I've found what I believe to be a cave. 我猜我发现的这是一个穴居。 Oh. This furniture looks handmade. 噢,这家具是手工制作的。
Science and technology 科学技术 Invasive species 入侵物种 Boom and bust 繁衍与湮灭 Invasive Argentine ants may be less persistent than once feared 入侵性阿根廷蚂蚁可能没有想象的那么可怕 Ready for take-off 随时准备离
One of the most common questions cancer patients ask their doctors is: has the disease been contained or will it spread. A recent study by U.S. and Chinese researchers may help provide clues. The scientists examined genetic(遗传的,基因的) m