The parasympathetic nervous system is characterized by the location preganglionic neurons and the short postganglionic axons near the organs they innervate. The preganglionic neurons would originate in the spinal cord or the brainstem while the postganglionic neurons would lie outside the CNS.
Osmosis will occur with water moving along the concentration gradient into the cell.
ALL THE STATEMENTS MADE ABOVE ARE TRUE.
Viruses are considered to be non living things because they do not meet many of the criteria that are needed for an organism to be considered a living thing.
Virus can not replicate on their own, they do not excrete any waste and do not meet all the seven features that living things must exhibit.
Genetic variation allows for a greater chance of a population surviving. For example, if a plant species acquires a disease, without genetic variation the disease would just keep getting passed on to the next identical organism and the population would decline and eventually die. But genetic variation prevents that from happening, because you have so many other species in the ecosystem, and genetic variation is a product of sexual reproduction meaning that the offspring of the diseased plant has a possibility of not inheriting the disease.