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Regina's Biology Blog

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

Biology Homework Help Resources

Monday October 31, 2005
Having trouble understanding certain biology topics? The best way to get a clear understanding of difficult biology concepts is to study using quality biology homework help resources.

Brain Anatomy: Cingulate Gyrus

Saturday October 29, 2005
A gyrus is a fold or "bump" in the brain. The cingulate gyrus coordinates sensory input with emotions and regulates emotional responses to pain.

Genes That Direct Root Growth Found

Saturday October 29, 2005
Scientists have identified the genes that are responsible for the growth of root systems in plants.

Stretching Arterial Cells

Wednesday October 26, 2005
Researchers have discovered a method of stretching arterial cells in an effort to discover how stretching makes them healthier and more resistant to disease.

Heart Anatomy: Aortic Valve

Saturday October 22, 2005
The aortic valve is a flap-like structure, located between the left ventricle and the aorta.

DNA Modeling

Thursday October 20, 2005
Building DNA models is a great way to learn about DNA structure and function. Learn how to construct DNA models from cardboard paper, jewelry, K'NEX brand constructors, and even candy.

Cell Biology Glossary: Nucleus

Tuesday October 18, 2005
The nucleus contains the cell's hereditary information and controls the cell's growth and reproduction. For more information about cellular structures, visit the Biology Glossary.

Drug Resistant Bird Flu Virus

Saturday October 15, 2005
Researchers have determined that a mutation in the H5N1 virus, the virus that causes the bird flu, is responsible for its resistance to antiviral drugs.

Brain Anatomy: Tectum

Thursday October 13, 2005
The word tectum means roof-like structure. The tectum is located near the upper surface or dorsal region of the midbrain. It is involved in auditory and visual responses.

Flying Dinosaur With Moveable Forewings

Wednesday October 12, 2005
Zoologists believe they have discovered how flying dinosaurs were able to take off from a stand-still position and land at slow speeds. The Pterosaur had a moveable membrane on each ... Read More

Brain Anatomy: Thalamus

Saturday October 8, 2005
The thalamus is a large, dual lobed mass of grey matter cells located at the top of the brainstem. It relays sensory information to the cerebral cortex.

Blood Cell With a Tail

Thursday October 6, 2005
Researchers have attached filaments to a blood cell, giving it a tail. It is hoped that these studies could one day lead to a method for directing medicine through the ... Read More

Heart Anatomy: Mitral Valve

Tuesday October 4, 2005
The mitral valve is a flap-like structure, located between the left atrium and the left ventricle of the heart.

Science Fair Projects Help

Saturday October 1, 2005
Need help with science fair projects? Find suggestions and tips on how to make your science fair project a winner!

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