Definition A cut (in actual or by imaging techniques) from the top to the bottom of the body, or of any anatomic structure, dividing it into left and right portions. Supplement Word origin: sagittal » from the Latin word sagittalis, meaning arrow. Synonym: median section...
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
