Answers. Best Answer: Poxviruses are the only viruses that do not need a cellâs nucleus to replicate inside the cell. The variola virus is the only known cause of smallpox.The virus initially replicates in respiratory tract epithelial cells.From there, a massive asymptomatic viremia ensues, resulting in focal infection of the skin, intestines, lungs, kidneys, and brain.nswers. Best Answer: Poxviruses are the only viruses that do not need a cellâs nucleus to replicate inside the cell. The variola virus is the only known cause of smallpox.
Chemotrophs are organisms that obtain energy by the oxidation of electron donors in their environments. These molecules can be organic or inorganic. The chemotroph designation is in contrast to phototrophs, which utilize solar energy. Chemotrophs can be either autotrophic or heterotrophic. Chemotrophs are commonly found in ocean floors where sunlight cannot reach them because they are not dependent on solar energy. Ocean floors often contain underwater volcanos that can provide heat to substitut
We should break this word down in order to gain an understanding of what this term is describing. There are three main parts to this word: chemo-, auto-and-troph. You can probably guess that chemo-means chemicals and that auto-means self.he archaea and bacteria that are chemotrophs in the deep sea vents tend to be the main producers of food for their ecosystem. Nitrogen-fixing bacteria are another example of chemoautotrophs. They use the nitrogen that is located in the soil as an energy source and convert it into nitrates.