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211 However, some researchers have suggested that the invention of weapons such as spears and bows and arrows made intertribal warfare among early humans so lethal that group selection did take over.

212 More lethal, though, is Lima's sorry bus fleet, the chief culprit for air pollution that exceeds World Health Organization limits ninefold.

213 A worker at a Russian nuclear facility gets exposed to a lethal dose of radiation.

214 The new study used a small percentage of the lethal oral dose for TCDD to avoid any acutely toxic effects from the exposure.

215 Mucormycosis is a kind of lethal infection caused by any fungus in the order Mucorales. It often involves the central nervous system, lungs, gastrointestinal tract, skin, orbit and paranasal sinuses.

216 The results indicated that bentazone sensitive lethal gene was controlled by a single recessive gene . The Norin 8 m seedling can be killed by bentazone (above 0.05%), but its FI seedlings are safe.

217 Myxedema coma is rare but potentially lethal, the symptoms and signs are many and are often insidious .

218 Summer low tides occur at the hottest point of the day,[http://sentencedict.com/lethal.html] exposing reefs in Ofu Island's shallow lagoons to temperatures normally lethal to corals -- but these reefs survive.

219 Dr Arkin has started to survey policy makers, the public, researchers and military personnel to gauge their views on the use of lethal force by autonomous robots.

220 AIDS, the last stage of HIV infection, is defined the appearance of potentially lethal opportunistic infections.

221 In extreme cases this could create a lethal dosis of lead.

222 Warfare and associated military operations involving the employment of lethal and incapacitating munitions and agents, typically poisons, contaminants, and irritants.

223 Meat , improperly handled , is a lethal carrier of bacteria.

224 The incipient lethal temperature are shifted upward by acclimation to warmer temperature.

225 The median lethal concentration data is reliable for future biological observation.

226 Some activities, such as taking lethal risks for peace in Burundi, are almost universally admired.

227 Take care not to overfeed, as the uneaten food will foul the water and can quickly prove lethal to the fry.

228 A mutation conferring lethal bentazon susceptibility has good potential prospects in hybrid rice breeding.

229 By determining the extract to the chicken embryo's maximum lethal concentration and hemagglutination.

230 Lethal voltage may be present on cable connector jacks or test fixtures.

231 Yes, the same Joyce Carol Oates who packs one of the most lethal punches in American literature also happens to be an astute observer of the sweet science.

232 To observe the effects of the fume of edible cooking oil (FEO) and the cooked edible oil (CEO) to induce mutation using a Sex-Linked Recessive Lethal Test (SLRL test) in Drosophila melanogaster.

233 Two brilliant university students were found dead in a hotel room after apparently rigging up a laptop to deliver lethal injections in what is thought to have been a suicide pact.

234 For a while Dr. Thrax was using the Smirch MLRS, though armed with lethal destructive power, Dr. Thrax was not satisfied with its clumsiness, as it did not fit in with his guerilla tactics.

235 Lethal dwarfism syndromes are associated with brachycephaly or clover - leaf skull deformity rather than dolichocephaly.

236 But in daily conversation, it is often used to refer to top prohibitions, rules that one should never break, because it will prove to be as lethal as touching the high-tension wire.

237 Lethal concentration ( LC ): concentration represents an acute poisoning.

238 Ask us about oxbow lakes, Pythagoras's theorem or which Lethal Weapon starred Patsy Kensit's breasts and we can tell you in a flash.

239 In physician-assisted suicide, a doctor gives a patient the means to a quick death; the patient administers the lethal medication when the doctor is away.

240 It'screens out lethal ultraviolet and X - rays from the sun.