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Regina's Biology Blog September 2004 Archive

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

Antarctic glaciers melting

Thursday September 30, 2004
NASA studies show that Antarctic glaciers are rapidly melting due to climate warming. It is believed that this will lead to a quick rise in sea level.

Taxonomy

Friday September 24, 2004
Taxonomy is a hierarchical system for classifying and identifying organisms. This system was developed by Swedish scientist Carolus Linnaeus in the 18th century.

Before You Buy a Microscope

Wednesday September 22, 2004
Before you purchase a microscope there are several factors that should be considered. How should the microscope be constructed? What type of lighting is best? Should you buy a compound ... Read More

HIV/AIDS and Tuberculosis

Monday September 20, 2004
The World Health Organization warns that the spread of HIV/AIDs is fueling a worldwide tuberculosis(TB) crisis. It is estimated that in the next twenty years over a billion people could ... Read More

Sea turtles spawn in record numbers

Saturday September 18, 2004
Mexican authorities have over 27 million turtle eggs under guard as Olive Ridley sea turtles spawn on Mexico's Pacific coast.

Animal Viruses

Friday September 17, 2004
At one time or another, we have all most likely been infected with a virus. Animal viruses are parasites that reproduce only after invading the host cell.

Can hurricanes actually help the environment?

Wednesday September 15, 2004
Coastal scientists from Louisiana State University's School of the Coast and Environment believe that while hurricanes cause obvious destruction, they can also have beneficial effects on nature and the environment.

Inactivity and heart disease

Saturday September 11, 2004
A study suggests that the lack of physical activity may be a stronger risk factor for heart disease than being obese or overweight.

Six Kingdoms of Life

Friday September 10, 2004
Living organisms are classified into one of six Kingdoms of life. These Kingdoms are Archaea, Monera, Protoctista, Fungi, Plantae, and Animalia.

Plant Tissue Systems

Thursday September 9, 2004
Plant cells are grouped together into various tissues. These tissues can be simple, consisting of a single cell type, or complex, consisting of more than one cell type.

New species of giant reptile found

Saturday September 4, 2004
Scientists have discovered the remains of a new species of giant reptile on a Norwegian Arctic island.

Circulatory Problems

Friday September 3, 2004
Several problems can occur with structures of the circulatory system. These problems may affect the heart valves, coronary arteries, veins, and/or capillaries.

Physiology of Taste

Friday September 3, 2004
The sense of taste is mediated by a group of cells called taste buds which are located on the tongue. The taste buds sample substances that are placed in the ... Read More

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