VIDEO

Osteoporosis

Osteoporosis means porous, weak bones, and certain risk factors make a person more susceptible to its development. Learn more about this bone disorder!
VIDEO

Karl Marx

Karl Marx is the father of communism and socialism and was influenced by the time of class inequality he lived in. Learn about his manifesto and more!
VIDEO

Myasthenia Gravis

Myasthenia gravis is a serious type of muscle weakness, a chronic disease caused by an autoimmune response. Learn about this disease and treatment here!
VIDEO

Earth’s Structure

Earth has a unique shape and many layers of rock and liquid that make up its geology from the crust to the center. Discover the structure of our planet here!
VIDEO

Gene Mutation

A gene mutation means there has been an alteration, mistranslation, or duplication in the replication process of DNA. Learn more about mutations here!
VIDEO

Biological Classification Systems

Carl Linnaeus was the founder of the organizational taxonomy system we use to group organisms in science. Learn all about biological classification here!
VIDEO

Feeding Among Heterotrophs

All life needs energy and nourishment, either self-produced (autotrophic) or from other organisms (heterotrophic). Learn about heterotrophic diets here!
VIDEO

Hyphens

Hyphens are used to form a compound word, joining two separate words to form one concept. Learn when hyphens should be used with examples in this video!