Greater alar cartilage One of a pair of cartilages that form the tip of the nose. It consists of a medial crus that extends into the nasal septum with its fellow of the opposite side, and a lateral crus that forms the anterior part of the wing of the nose. Synonym: cartilago alaris major...
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..
Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..
