搜索结果: 1-7 共查到“国际动态 limited”相关记录7条 . 查询时间(0.06 秒)
Youth in the United States are targets of cross-platform digital abuse from peers, strangers, offline acquaintances and even relatives, with threats ranging from harassment and sexual violence to fina...
Does limited underground water storage make plants less susceptible to drought?（图）
limited underground water storage plants less susceptible drought
2019/10/23
You might expect that plants hoping to thrive in California's boom-or-bust rain cycle would choose to set down roots in a place that can store lots of water underground to last through drought years.B...
Less life:Limited phosphorus recycling suppressed early Earth’s biosphere
Less life Limited phosphorus recycling early Earth’s biosphere
2017/12/18
As Earth’s oxygen levels rose to near-modern levels over the last 800 million years, phosphorus levels also increased, according to modeling led by the UW’s Michael Kipp and others. Accordingly, Kipp ...
Where Food Is Limited,Guppy Mothers Gestate Their Young Longer（图）
Food Is Limited Guppy Mothers Gestate Young Longer
2017/10/25
Trinidadian guppy mamas can’t swap links to maternity blogs or copies of pregnancy books, yet evolution has made them master strategists of childbearing nonetheless. A new study shows that guppies who...
“Big Food” Companies Have Less Power Than You Might Think:Progress Toward Sustainability Slowed by Limited Knowledge and Influence on the Farm
Big Food Companies Have Less Power Might Think Progress Toward Sustainability Slowed Limited Knowledge Farm
2017/7/21
A Dartmouth study finds that “Big Food” companies are striving to make food more sustainable from farm to factory but have less power than you might think. In fact, most Big Food companies have little...
Polar Bears Experience Limited Energy Savings in Summer,New Study Finds
Polar Bears Energy Savings Summer
2015/8/4
Polar bears are unlikely to physiologically compensate for extended food deprivation associated with the ongoing loss of sea ice, according to one-of-its-kind research conducted by University of Wyomi...
WASHINGTON, Dec. 20, 2006 -- Agriculture Secretary Mike Johanns today announced the immediate suspension and proposed debarment of AWB Limited, formerly the Australian Wheat Board, and its affiliates ...