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E. coli Bacteria

E.coli Bacteria

E. coli bacteria are among the numerous bacteria that reside in the digestive tract of humans and animals. While most E. coli strains are harmless, others have gained the ability to produce poisonous substances which cause disease. Through genetic engineering, scientists are finding ways to use E. coli to aid in the treatment of human disease.

Biology Spotlight10

Cell Cycle

Cells grow and replicate through an ordered series of events called the cell cycle.

Green Tea Improves Health

Studies suggest that drinking green tea improves health due to a compound called epigallocatechin gallate (EGCg). This compound has cancer inhibiting and anti-inflammatory properties.

Citric Acid Cycle

The citric acid cycle is a stage in cellular respiration that helps to harvest the energy stored in carbohydrates, proteins, and fats. These molecules are broken down into smaller components to be used as fuel by cells.

Four Steps of Cardiac Conduction

Have you ever wondered what causes your heart to beat? Learn about the four steps of cardiac conduction, the rate at which the heart conducts electrical impulses.

Mammal Species

Learn about the characteristics that differentiate mammal species from other vertebrates.

Can Antibacterial Soaps Make You Sick?

The chemical triclosan, found in some antibacterial soaps and other household products, may compromise the immune system in children and increase the risk for the development of a number of diseases.


Lymphocytes are a type of white blood cell that provide a means for specific and nonspecific immunity. They circulate in blood and lymph fluids and defend the body against cancerous cells, pathogens, and foreign matter.

Skeletal System

The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs.

Difficult Biology Words

Understanding difficult biology words is not impossible. Become familiar with how to study difficult biology terms.

Stem Cell Research

Stem cell research focuses on utilizing stem cells to generate specific cell types for the treatment of disease.

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