soluble antigen viral antigen that remains in solution after the particles of virus have been removed by means of centrifugation; in the case of the influenza viruses, it is the internal helical structure, free of the external envelope. Synonym: s antigen...
Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..
