Dogma

Dogma a theory or belief that is formally stated, defined, and thought to be true...

The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..

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