Explain the difference in how rocket and artificial satellite used

A rocket is a powered vessel or missile which is designed to deliver things such as people, satellites or ballistics.

A satellite is an orbital object which only has sufficient onboard thrust power to allow for minor course or navigational corrections

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.