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Virulence factor. Virulence factors (preferably known as pathogenicity factors or effectors in botany) are cellular structures, molecules and regulatory systems that enable microbial pathogens ( bacteria, viruses, fungi, and protozoa) to achieve the following: [ 1][ 2] colonization of a niche in the host (this includes movement towards and ...
Resource refers to all the materials available in our environment which are technologically accessible, economically feasible and culturally sustainable and help us to satisfy our needs and wants. Resources can broadly be classified according to their availability as renewable or national and international resources.
Ohm's law states that the electric current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, [ 1] one arrives at the three mathematical equations used to describe this relationship: [ 2] where I is the current through the conductor ...
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A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [ 2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are synonymous. The standard test for synonymy is substitution: one form can be ...
Hypoxia (medicine) Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level. [ 1] Hypoxia may be classified as either generalized, affecting the whole body, or local, affecting a region of the body. [ 2] Although hypoxia is often a pathological condition, variations in arterial ...
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Learning theory describes how students receive, process, and retain knowledge during learning. Cognitive, emotional, and environmental influences, as well as prior experience, all play a part in how understanding, or a worldview, is acquired or changed and knowledge and skills retained. [ 1][ 2] Behaviorists look at learning as an aspect of ...