necessary to register an active substance or a plant protection product. view full glossary er half maximal effective rate (er ) refers to the rate of a substance which induces a response halfway between the baseline and maximum after a specified exposure time, i.e. the rate at which % ofthe maximal...
is a genus ofthespecies; so these—both man and animal—are called secondary substances. [ ] — aristotle, categories a (trans. j. l. ackrill ) in chapter of book i the physics aristotle argues that any change must be analysed in reference to the property of an invariant subject: as it was before the...
leader says he hopes trump's middle east plan succeeds ehud olmert, whose own proposal in failed to reconcile israelis and palestinians, said he "will be the most enthusiastic supporter of president trump if he succeeds." h ago australian animal species need "urgent" help more than animal species require...
national park maze national park kafta-shiraro wildlife park abijatta-shalla lakes national park yangudi rassa national park alatish national park geraille national park chebera chorchora national park world heritage sites aksum fasil ghebbi - gondar harar jugol konso cultural landscape lower valley of...
wedge shape that extends to the south pole , overlapping the antarctic claims of argentina ( argentine antarctica ) and chile ( chilean antarctic territory ). the territory was formed on march , although the uk's claim to this portion ofthe antarctic dates back to letters patent of and . the area now...
hours ago nature weird video of scientists dropping ice down a super deep hole is totally mesmerising the strangest sound you'll hear today. days ago nature a bizarre jellyfish species can sting you without touch by hurling 'mucus grenades' ew. days ago nature scientists discover giant viruses with features...
numbers to know quick stats educational opportunities kenai settlement history get relocation guide plan your visit birding in the kenai area dip netting wildlife viewing fish species hiking & biking local trails & difficulty transportation day trips request information plan a meeting facility rentals...
cross-breeding of plants in order to develop offspring containing a desired characteristic found in one or both ofthe parents. view full glossary lc median lethal concentration (lc ) is an indication ofthe lethal toxicity of a given substance, representing a concentration at which % of subjects die...
check out our tents section for details on what you need, tent reviews and more. cataraft on a float hunt catarafts are but one option for float-fishing or float-hunting trips in alaska. check out our inflatable boats section for details on all the various types of boats for your alaska trip. terminal...