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Regina's Biology Blog March 2008 Archive

By Regina Bailey, About.com Guide to Biology since 1997

Red Wine Antioxidant Fights Cancer

Saturday March 29, 2008
Photo courtesy PDPhoto.org Who would have thought that the red wine you had with dinner actually contained a powerful cancer fighting antioxidant? Studies have shown that red wine and ... Read More

What are Glial Cells?

Thursday March 27, 2008
Astrocyte Glial Cell © Dennis Kunkel Glial cells are cells of the nervous system. Unlike neurons however, glial cells do not conduct nerve impulses. Types of glial cells ... Read More

Test Your Knowledge of Photosynthesis

Wednesday March 26, 2008
Photo courtesy PDPhoto.org In photosynthesis, the sun's energy is captured in order to make sugar and other organic compounds, such as lipids and proteins. Plants use carbon dioxide, water, ... Read More

Do Men and Women Like Different Foods?

Saturday March 22, 2008
We all know that men and women are different. Now studies have shown that men and women have different eating habits. According to a survey from the Foodborne Disease Active Surveillance ... Read More

What is a Centromere?

Friday March 21, 2008
A centromere is a region on a chromosome that joins two sister chromatids. In prophase of mitosis, kinetochore fibers attach to the centromeres of the chromosomes. During metaphase, kinetochore fibers attach ... Read More

What are Chaparrals?

Wednesday March 19, 2008
Chaparrals are dry areas typically found in coastline regions. The landscape is predominated by dense evergreen shrubs and grasses. Chaparral Biome. San Diego National Wildlife Refuge (USFWS) The hot, ... Read More

Reversing Antibiotic Resistance

Saturday March 15, 2008
Streptococcus pneumoniaeCredit: CDC/ Dr. Richard Facklam and Janice Carr Researchers have identified a particular protein that enables the bacterium Streptococcus pneumoniae to become resistant to penicillin. Normally, penicillin works ... Read More

Plant Tissue Types

Friday March 14, 2008
Plant Parenchyma Cell © Dennis Kunkel Like other organisms, the cells in a plant are grouped together into various tissues. These tissues can be simple, consisting of a ... Read More

Stress, Learning, and Memory

Thursday March 13, 2008
A study reveals that short-term stress can affect memory and the ability to learn. This type of stress damages neurons in the brain and disrupts their ability to communicate. The researchers found ... Read More

Genetically Engineered HIV Fighting Immune Cells

Saturday March 8, 2008
HIV-1 budding from cultured lymphocyte. Credit: CDC / C. Goldsmith, P. Feorino, E. L. Palmer, W. R. McManus Scientists have genetically engineered immune cells to make them more ... Read More

Know Your Organ Systems

Friday March 7, 2008
Parts of the urinary system remove liquid waste from the blood. Do you know which system removes gaseous waste (carbon dioxide) from the blood? Digestive Respiratory Nervous Circulatory Test your ... Read More

Can Bacteria Reduce Kidney Stone Risk?

Thursday March 6, 2008
Researchers have discovered that certain type of bacteria, Oxalobacter formigenes, may reduce the risk of recurrent kidney stones by as much as seventy percent. These bacteria are naturally found in the ... Read More

Deserts

Saturday March 1, 2008
Sand Dunes Photo courtesy PDPhoto.org Deserts are dry areas that experience extremely small amounts of rainfall. One of the biggest misconceptions about deserts is that they are all ... Read More

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