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已读[153] 发布: 2013/06/13 01:35:57
Monadnock Ledger Transcript Each species has a preferred habitat — typically field, forest or marsh. Different species ... Female members of a genus lacking that chemical will flash a signal that lures males from species that have the repellent — and consume them. All the ...
已读[161] 发布: 2013/06/13 01:35:54
OregonLive.com The Toxics Disclosure for Healthy Kids Act (House Bill 3162), currently being debated by the state legislature, would require manufacturers to tell the Oregon Health Authority when their children's products contain one or more chemicals on a science ...
已读[164] 发布: 2013/06/13 01:35:50
The Japan Times Caterpillars that chew on plants containing those compounds have developed several defenses against the toxins, said May Berenbaum, an entomologist at the University of Illinois at Urbana-Champaign. For example, some caterpillars accumulate the yellow  ...
已读[211] 发布: 2013/06/13 01:35:43
SanFranciscoSentinel.com It's no secret that wildfires are becoming more common. Residents of states like California, Wyoming, New Mexico and Colorado have become accustomed to daytime smoke and sudden evacuations. Still, the developers who want their money continue to  ... and more »
已读[205] 发布: 2013/06/12 12:24:48
Care2.com (blog) “The stumps of eucalypts and acacia will be sprayed with an herbicide (Garlon with the active ingredient triclopyr ) soon after the trees are cut down to prevent resprouting,” explains MillionTrees. “An estimated 1 – 2 ounces of formulated herbicide ...
已读[173] 发布: 2013/06/12 00:30:04
R & D Magazine Understanding how to reduce lignin at the cellular level could lead to advances in paper and biofuels production, where harsh chemicals and costly treatments are used to remove lignin from wood. “This is the first time that we have proof that a micro ...
已读[153] 发布: 2013/06/12 00:29:56
The Island Connection There are about 2,000 known firefly species with flashing patterns that are unique to each. Fireflies are bioluminescent throughout their lifecycle and generate light through a chemical reaction within special cells in their bodies. In adults the ...
已读[333] 发布: 2013/06/12 00:29:51
Herald & Tribune The University of Tennessee was granted permission by the state to open to hydraulic fracturing 8,600 pristine acres in the Cumberland Forest , a public-lands asset held by UT since 1936. When the state adopted new oil and gas regulations last year, it ...
已读[166] 发布: 2013/06/12 00:29:41
Computer Graphics World The team also created a key skydiving sequence called “barrel of monkeys,” a sequence in which Iron Man crashes into a snowy forest , and a close-up shot with an “extremis” effect. In the skydiving sequence, Iron Man rescues people propelled out a hole ...
已读[245] 发布: 2013/06/12 00:29:21
Kansas City Star Cheryl Kimmi said this is because she refuses to use chemical herbicides or pesticides. So when the family announced plans for the food forest , some neighbors were skeptical that it would be an improvement, Burger said. The Kimmis have worked to allay ... and more »
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