tissue culture plastic (Science: cell culture) Polystyrene that has been rendered wettable by oxidation, a treatment that increases its adhesiveness for cells from animal tissues and without which anchorage dependent cells will not grow. Commercially achieved by treatment known as glow discharge...
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 describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
