In botany, a fruit is the seed-bearing structure in flowering plants (for example, cherries, berries, bean pods, corn kernels, tomatoes, grains). "Fruit" normally means the fleshy seed-associated structures of a plant that are sweet or sour, edible in the raw state (apples, grapes, lemons, strawberries, etc).
Edible fruits have propagated with the movements of humans and animals in a symbiotic relationship as a means for seed dispersal and nutrition. Humans and many animals have become dependent on fruits as a source of food.
A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
There are millions types of viruses, ~ 5,000 virus species have been described in detail. Viruses are found in almost every ecosystem and are the most abundant type of biological entity. The origins of viruses in the evolutionary history of life are unclear.
While not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles, virions, which consist of the genetic material made from either DNA or RNA, a protein coat, and in some cases an outer coat of lipids. Virion is about one one-hundredth the size of a bacterium.