True or false? Some types of Viruses use horizontal gene transfer to infect their host organism

What must happen before a body cell can begin mitotic cell division

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

1. list three scientific reasons cockroaches may fly.