Gregor Mendel The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles, now called Mendel's law of segregation, ... Read More

© MedValet The pericardium is the fluid filled sac that surrounds the heart and the proximal ends of the aorta, vena cava, and the pulmonary artery. The pericardium has ... Read More

The limbic system is a set of brain structures located at the top of the brainstem and buried under the cortex. The limbic system is responsible for controlling various functions ... Read More

MRI Brain Scan Credit: NIH Researchers have determined what makes a social person so social. It appears that outgoing, people-loving individuals have a certain brain structure that contributes ... Read More

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 Parenchyma Cell© Dennis Kunkel Plant cells are eukaryotic cells that are similar to animal cells. Unlike animal cells however, plant cells contain structures such as a cell ... Read More

Basking SharkChris Gotschalk/Wikimedia Commons Researchers have shed light on a mystery that has puzzled scientists for 50 years. This mystery centers around the world's second largest fish, the ... Read More

Do you need to find some interesting activities to keep the kids busy this summer? Biology activities and lessons allow students to investigate and learn about biology through hands-on experience. ... Read More

© MedValet The heart is the organ that supplies blood and oxygen to all parts of the body. It is about the size of a clenched fist, weighs ... Read More

Researchers have discovered that a certain species of frog that lives on the island of Borneo can communicate using ultrasonic calls. These high-pitched sound frequencies surpass the upper limits ... 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

Six Kingdoms of LifeWikimedia Commons Organisms are classified into three Domains and into one of six Kingdoms of life. These Kingdoms are: Archaebacteria Eubacteria Protista Fungi Plantae Animalia Organisms are placed into these categories ... Read More

Human Connective Tissue in CultureDr. Cecil Fox/National Cancer Institute Researchers have successfully created bone, cartilage, and endothelium (single layer of overlapping flat cells that form capillary walls) from ... Read More

Bison on the GrasslandPhoto: Jesse Achtenberg/USFWS Grasslands are areas of open grass with very few trees. Temperate grasslands and savannas are two types of grassland biomes. Grasslands are located ... Read More