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...
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
