E. coli bacterium © Dennis Kunkel The U.S. Centers for Disease Control and Prevention (CDC) estimates that around 80 million people a year in the U.S. alone contract ... Read More

Plant cells are eukaryotic cells and are similar to animal cells. Unlike animal cells however, plant cells contain structures such as cell walls, plastids, and large vacuoles. The cell wall gives ... Read More

Camponotus festinatus workers and soldiers store fat in their bodies to share with other members of the colony. Credit Alex Wild Researchers have determined that worker and soldier ... Read More

Muscle Cell Mitochondria © Dennis Kunkel Mitochondria are the cell's power producers. They convert energy into forms that are usable by the cell. They are the sites of cellular ... Read More

© Steve Berg In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod color is dominant, what will the resulting ... Read More

Researchers reveal that fungal parasites are attracted to specific fungi cultivated by specific ant species. Ants that grow certain species of fungi have anti-fungal defensive mechanisms to ward off other types ... Read More

The human body is made up of several organ systems that work together as one unit. Some of these organ systems are the: Circulatory Digestive Nervous Respiratory Do you know which organ system contains the ... Read More

Researchers have created a novel mathematical model to estimate dinosaur body temperatures. The researchers used growth trajectories from eight dinosaur species that ranged in size from 30 pounds to 28 tons ... Read More

Carnivorous plants are plants that capture, kill, and digest animal organisms. These plants have developed specialized leaves that work to lure and then trap unsuspecting insects. There are several genera ... Read More

The reticular formation is a group of nerve fibers located inside the brainstem. The reticular formation is involved in several body functions, some of which include: Relaying nerve signals Arousal Attention Cardiac reflexes Motor function Additional Reading: Anatomy ... Read More

The African Rhino Specialist Group has announced that the West African black rhino may now be extinct. This disappointing report came after an intensive survey of these animals, in which none ... Read More

As a plant matures, its cells become specialized in order to perform certain functions necessary for survival. Some plant cells synthesize and store organic products, while others help to transport nutrients ... Read More

Human cells contain 23 pairs of chromosomes for a total of 46. There are 22 pairs of autosomes and one pair of sex chromosomes. The sex chromosomes are the X ... Read More