Bioterrorism: Past, present & future
By: Ben Taylor
"Bioweapons." The very word gives people shivers which crawl down their spine like a thousand ants. It is a word that is equated with "nuclear holocaust" in people's minds right next to a picture of what they believe the end of the world will...
The cell nucleus
By: Megan Worley
The cell's nucleus is usually the largest organelle in a cell. It is substantially larger in animals cells that in prokaryotic cells. The nucleus has three major roles within the cell. The nucleus is the site for DNA duplication to support cell reproduction as well...
By: Marlin Bressi
Considering what passes for culture these days, whether it is music, literature, or film, it is quite possible that human beings have reached the apex of their evolutionary potential. The next phase of human evolution just might be devolution.Many scientists believe that devolution is...
By: Barbara Guess
The main and most important difference for man is that most bacteria are beneficial to humans. Our bodies contain thousands of bacterial species that outnumber by 10 to 1 our human cells and these help in food digestion, to synthesize vitamins and help promote our...
Introduction to the Chaparral biome
By: Lime Red Tetrahedron
Chaparral is a biome that can be found in small amounts in many areas of the world. This biome is characterised by hot and dry summers and warm winters. This is an example of Chaparral (points at picture). During this presentation, we will look at...
What are the differences structurally between a plant and animal cell?
By: aggieteacher
Cells are the basic building blocks of life. They contain smaller parts, called organelles, which can be roughly compared to the organs of a body. These organelles serve varied purposes within the cell to maintain the health of the cell itself, as well as the...
The life cycle of the Malaria parasite
By: Stephanie A. Smith
Malaria has been infecting people long before there were people to be infected, and so has the genus Anopheles, A.K.A. mosquito, the only insect that is capable of harboring the malarial parasites that are capable of infecting humans. Malaria has been around...
The link between bipedalism and increased brain size in hominid evolution
By: Xauri'El Zwaan
Bipedalism and brain size are two of humanity's most distinctive adaptations. Among close relatives such as chimpanzees and gorillas which are able to walk bipedally, we stand out as being the most efficient users of bipedal motion. Our bodies have evolved to make it not...
By: Darian Peters
Ribonucleic Acid, RNA, is typically found as a single stranded chain of ribonucleotides and is found in both prokaryotic and eukaryotic cells and can perform a variety of jobs in the cell. Certain types of RNA lead to the coding of a protein. Messenger RNA...
Botany science projects for middle school students
By: Susan Quilty
Middle school students may look for flashy science fair projects, but often the simple ideas are best. While it may help to have a project with an original twist, it is more important that the student thoroughly understands his or her project and can clearly...

 

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