Aggressin
(Science: protein) a term for a protein produced by a pathogenic microbe which aids its spread in the host by inhibiting the immune system of the host (specifically the response by phagocytes).
Any substance, produced in the body by a pathogenic bacterium, that enhances the virulence of the bacteria by paralyzing the host defensive mechanisms (as the red blood cells) and held to be produced by the bacteria in the body of the host.
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..
Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..
This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..