if a virus destroy the bacterial cell what would happen if a virus invades other cells? How would this cause disease

Viruses are perfect parasites. It has been known for decades that once a virus gets inside a cell, it hijacks the cellular processes to produce virally encoded protein that will replicate the virus's genetic material

At the beginning of an infection, the virus' DNA or RNA gets injected into a cell (a human cell, if the virus infects humans, or a bacterial, cell if the virus infects bacteria). Afterward, the virus reprograms the cell to make lots of copies of the virus. Eventually, these copies are packaged into new capsules. These cells then attack the body after forming millions of cells thus leading to a disease.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.