Word: bacterias
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1999
Sort By: most recent first
(reverse)
...into plants and animals through simple crossbreeding, but for the most part scientists merely reshuffled genes within a particular species. Corn could not be crossed with soybeans, nor cows with pigs. Now plants as diverse as tomatoes and cotton have been equipped with genes that scientists have borrowed from bacteria. Shrimp may soon be given disease-fighting genes taken from sea urchins. Eventually, crops and farm animals may be raised to produce not just food and clothing but also a wide array of chemical compounds and human proteins like insulin. While research on plants has taken the lead, work with...
...these landfills where bacteria is unable to grow, not even food or paper can decompose, Ahearn said...
Cusack said Cambridge has recently modernized its water system to cut the level of THMs, which form when chlorine added to water to kill dangerous bacteria reacts with organic material, such as leaves and wood. Recent changes to the system include adjustments in the filtering process and a switch to non-chlorine based chemicals, Cusack said...
THMs--high levels of which are a fairly common problem in the U.S.--form when chlorine added to water to kill dangerous bacteria reacts with organic material, such as leaves and grass. Some experts say it is more dangerous to drink bacteria-laden water, than water that contains THMs...
...thousands of Adelie penguins, which hatch their eggs in the world's southernmost rookery. Skuas -- seagull-like scavenger birds -- scout the breathing holes and the margins between sea ice and land, seeking seal carcasses and unguarded baby penguins to feast on. The ice itself is permeated with algae and bacteria...