Human Ovum and Sperm© Dennis Kunkel Individual organisms come and go, but, to a certain extent, organisms transcend time through reproducing offspring. In sexual reproduction, two individuals produce offspring ... Read More

Researchers have come one step closer to being able to use plants more often as a source for a particular type of medicine. An important gene has been identified that is ... Read More

Heart Muscle Cell© Dennis Kunkel Muscle tissue is made of excitable cells that are capable of contraction. This tissue is the most abundant tissue in most animals. ... Read More

Researchers have discovered two important pathways that control stem cell function. One pathway signals cell repair, while the other inhibits cell repair. When cells get worn out or damaged, certain biochemical ... Read More

All animals have common names. These names may be different for the male, female, and young of a species. They may also be different for different groups of animals. For example, ... Read More

Before you eat that big juicy steak or those tasty fries, you may want to think about how it might affect your memory. A study suggests that a diet high in ... Read More

SalmonellaCredit: Janice Carr/CDC The nationwide outbreak of Salmonella in raw red plum, red Roma, and round red tomatoes has caused much concern among consumers. Salmonella is responsible for millions ... Read More

Bacteriophage Structure© Gary E. Kaiser Bacteriophages are viruses that infect bacteria. Viruses cannot reproduce or express their genes without the help of a host. Viruses that kill their infected ... Read More

Human anatomy is a popular subject for many biology students. Human anatomy deals with body components and body structure. The human body is organized on various levels. Each of these ... Read More

Golgi Apparatus © Dennis Kunkel The Golgi complex or Golgi apparatus is responsible for manufacturing, warehousing and shipping certain cellular products, particularly those from the endoplasmic reticulum (ER). ... Read More

Do you need to find some interesting activities to keep the kids busy this summer? Biology experiments are popular with kids and people of all ages. How would you like to make ... Read More

Have you ever wondered if you could improve your IQ? A study suggests that a person can improve one aspect of his or her IQ through memory training. IQ tests measure two ... Read More