Category Archives: Biology

Biology, also referred to as the biological sciences, is the study of living organisms utilizing the scientific method. Biology examines the structure, function, growth, origin, evolution, and distribution of living things. It classifies and describes organisms, their functions, how species come into existence, and the interactions they have with each other and with the natural environment. Four unifying principles form the foundation of modern biology: cell theory, evolution, genetics and homeostasis. Biology as a separate science was developed in the nineteenth century, as scientists discovered that organisms shared fundamental characteristics. Biology is now a standard subject of instruction at schools and universities around the world, and over a million papers are published annually in a wide array of biology and medicine journals. Most biological sciences are specialized disciplines. Traditionally, they are grouped by the type of organism being studied: botany, the study of plants; zoology, the study of animals; and microbiology, the study of microorganisms. The fields within biology are further divided based on the scale at which organisms are studied and the methods used to study them: biochemistry examines the fundamental chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the … Continue reading →

Biology Body Fluids Circulation part 11 (Circulatory System in Animals) CBSE class 11 XI Biology Body Fluids Circulation part 11 (Circulatory System in Animals: Open closed) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Contact Information Available for logged-in reporters only Newswise FORT LAUDERDALE-DAVIE, Fla. Just when you thought hurricanes couldn't get any scarier, think again. Their names roll of the tongue like a rogues' gallery: Floyd, Frances, Irene, Wilma and Andrew. But these aren't the names of notorious criminals; rather, they are just a few of the hurricanes since 1992 that have helped spread invasive marine species throughout the Florida Straits. Researchers at Nova Southeastern University's (NSU) Oceanographic Center have discovered that storms don't only have a dramatic impact on land; they have an equally dramatic effect on ocean currents, which helps the spread of marine invasive species throughout a region. More specifically, NSU researchers looked at the distribution of lionfish in the Florida Straits. "This is the first-ever study that shows hurricane-altered ocean currents are able not only to help, but actually accelerate the invasion of non-native marine species of any kind," said Matthew Johnston, Ph.D., one of the research scientists at NSU's Oceanographic Center who conducted the study. "Lionfish are pretty sedentary, so this is like creating express lanes on a superhighway otherwise, that's a pretty long swim for lionfish babies." The research, conducted by Johnston and NSU Oceanographic Center Professor … Continue reading →

Photo by Alexandra Schmeling. Ecology and Evolutionary Biology professor Thomas Near will be the next master of Saybrook College, University President Peter Salovey announced to a crowd of students Friday evening in the colleges dining hall. Near will succeed Paul Hudak, who will step down at the end of this academic year. Amid applause from the roughly 200 Saybrugians, Salovey and Yale College Dean Jonathan Holloway lauded Near for his research on fish and already-proven commitment to the Saybrook community as a fellow of the college. Nears five-year term will start on July 1. I, like you, started at Yale as a Saybrugian, Near said. There will be time for us to get to know each other. There will be time for us to share our stories with one another. Near came to Yale in 2006 after teaching for three years at the University of Tennessee. He currently serves as the director of undergraduate studies in Ecology and Evolutionary Biology, in addition to being the associate curator of the Peabody Museum of Natural History. Near, who teaches the course Ichthyology, focuses on fish in his research and has led a Yale Summer Session class on the topic. Lets hear it … Continue reading →

16 hours ago by Amanda Morris Cartoon highlighting a variety of representative methods for E. coli crude extract preparation. Deep in the heart of synthetic biology are the proteins that make it tick. Protein engineering is the crucial pulse of the booming, relatively new scientific discipline. Scientists grow, harvest, and reprogram proteins to become new drug therapeutics, environmentally friendly fuels, and vaccines. Producing proteins quickly and in large quantities has been and remains a major challenge in the field. "There's an increasing demand for cost-effective, scalable, highly yielding systems to make proteins," said Northwestern University synthetic biologist Michael Jewett. "We want to address this need, which could help lead to new targeted therapies that attack disease or enzymes that make sustainable chemicals." An assistant professor of chemical and biological engineering in the McCormick School of Engineering, Jewett and his team have pioneered a new protein production method that is faster and cheaper than ever before, making synthetic biology research more accessible for laboratories everywhereeven in high schools. Supported by DARPA and the Army Research Office, the research is published in the March 2015 issue of Scientific Reports. Yong Chan Kwon, a postdoctoral associate in Jewett's lab, coauthored the paper. Jewett's … Continue reading →

Biology 12 The Brain Video we did For a biology project! Trying to be like Crash Course Science! No claims to Crash Course, Just a bunch of high school kids getting grades. Be sure to check out the real Crash Course, they. By: Cassie May … Continue reading →

EMBL Conference: Microfluidics 2014 The EMBL Microfluidics Conference 2014 brought together top researchers in the field to discuss the use of Microfluidics in biology, sparking scientific exch... By: European Molecular Biology Laboratory (EMBL) … Continue reading →

Inaugurazione NY-MaSBiC New York Marche Structural Biology Center Inaugurazione NY-MaSBiC New York Marche Structural Biology Center. By: UNIVPM … Continue reading →

Sexual biology may be the key to uncovering why Anopheles mosquitoes are unique in their ability to transmit malaria to humans, according to researchers at Harvard T. H. Chan School of Public Health and University of Perugia, Italy. Through analysis of 16 Anopheles genomes, they found that these mosquitoes' reproductive traits evolved along with their capacity to transmit the Plasmodium parasite that causes malaria. These findings may provide a new target for malaria control, particularly in regions hardest hit by the disease. "Our study is the first to reveal the evolutionary dynamics between the sexes that are likely responsible for shaping the ability of Anopheles mosquitoes to transmit malaria to humans," said senior author Flaminia Catteruccia, associate professor of immunology and infectious diseases at Harvard Chan School and University of Perugia. The study was published online February 26, 2015 in Science. Anopheles mosquitoes are the only mosquitoes capable of transmitting human malaria; however, the species within this genus vary widely in their ability to do so, for reasons that remain unknown. The researchers analyzed nine globally dispersed Anopheles species, enabling reconstruction of the evolutionary history of their reproductive traits and capacity to transmit malaria. They found that two key male … Continue reading →

The spread of exotic and aggressive strains of a plant fungus is presenting a serious threat to wheat production in the UK, according to research published in Genome Biology IMAGE:This is a close up photo of yellow rust on wheat leaf. view more Credit: Andrew Davis, John Innes Centre The spread of exotic and aggressive strains of a plant fungus is presenting a serious threat to wheat production in the UK, according to research published in Genome Biology. The research uses a new surveillance technique that could be applied internationally to respond to the spread of a wide variety of plant diseases. Wheat is a critical staple and provides 20% of the calories and over 25% of the protein consumed by humans. 'Yellow rust' caused by the fungus Puccinia striiformis f. sp. tritici (PST) is one of the plant's major diseases and is widespread across the major wheat-producing areas of the world. Infections lead to significant reductions in both grain quality and yield, with some rare events leading to the loss of an entire crop. New fungus strains have recently emerged that adapt to warmer temperatures, are more aggressive and have overcome many of the major defensive genes in wheat. … Continue reading →