Answer:
When the virus infects a cell, the RNA genome enters the cell and programs it to make new virus particles. These virus particles are released from the cell and go on to infect new cells. In humans, poliovirus is ingested, and replicates in cells of the gastrointestinal tract.Poliovirus, the prototypical picornavirus and causative agent of poliomyelitis, is a nonenveloped virus with a single-stranded RNA genome of positive polarity. The virion consists of an icosahedral protein shell, composed of four capsid proteins (VP1, VP2, VP3, and VP4), which encapsidates the RNA genome (1).RNA viruses generally have very high mutation rates compared to DNA viruses, because viral RNA polymerases lack the proofreading ability of DNA polymerases. The genetic diversity of RNA viruses is one reason why it is difficult to make effective vaccines against them.
Answer:
Its based on their physical properties
Explanation:
Answer:
is it pneumonia
Explanation:
i think it is this but am not sure
The following statement is false: MOST US STATES PROHIBIT THE IMPORTATION OF ANIMAL SPECIES LIKELY TO BECOME INVASIVE IF THEY ESCAPE INTO THE WILD.
Presently, most US states do not have any law, which prohibit people from bringing into the US animal species that are likely to become invasive.
Invasive plant and animals are a great source of problems in America. These species usually destroy habitats and native species, this usually throw the ecological communities out of balance. The government spend as much as $120 billions every year to control these invasive species.
Energy and matter characterize both physical and biological systems. These systems are defined both by the types of energy and matter they contain and by how that matter and energy move through and between systems. ... This means that energy and matter can change forms but cannot be created or destroyed.
