Posts tagged bacteria
There are a number of various types of bacteria that naturally exist in our bodies and help us in different ways. Unfortunately, bacteria get a bad reputation. Most people are unaware of how important these organisms are. It is estimated that in a healthy person, there are about ten times as many bacteria cells as human cells! Fluctuations in the level of these bacterial cells can lead to problems such as digestive issues, skin problems, obesity, and more. It is important to think about the way bacteria cells function and evolve when we consider our own health.
If an individual becomes More >
Each day your body works to defend you against invaders. Harmful bacteria, viruses, and fungi can enter your system and cause diseases. In addition to relying on your immune system, it is helpful to avoid contact with germs by thoroughly washing your hands and keeping your environment clean.
How is it possible that some organisms have the ability to survive in some of the dirtiest places on earth? What survival mechanisms do they have that differ from ours?
Scientists ground up the brains and other nerve tissues from two species of insects, the American cockroach and the desert locust. Material extracted from More >
Engineering students at Edinburgh University have created bacteria that can be used to detect landmines! The cheaply engineered bacteria can be mixed into a colorless fluid which would be sprayed over suspect soil. Chemicals that leak out of old landmines stimulate the bacteria to make a green protein, producing large patches of bright green where bacteria encounter explosive material.
According to the United Nations, between 15,000 and 20,000 people are injured or killed by landmines that litter more than 80 countries including Sudan, Somalia, Iraq, and Afghanistan. The bacteria would likely fail to identify those mines that do not leak, and would detect More >