- convalescence stage
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..