Not necessarily. I have no background on this kind of thing. I would say that they do not only for the facts of 1, where would they get a new heart? 2, I was born with three holes in my heart (I swear to God) and merely got patches. 3, Replacing the heart would be hard so as though when your heart stops beating you die. There would be only a very small space of time that would have to do so.
The answer in my opinion should be aids
Answer:
I am explain you in image
Answer:
Pilus.
Explicación:
Pilus es la estructura que se encarga de transferir el plásmido entre las células bacterianas. Un pilus es un apéndice con forma de cabello que se encuentra en la superficie de muchas bacterias y arqueas. Esta estructura de pilus es responsable de la transferencia de plásmido de una célula a otra. Esta transferencia de plásmido de una célula bacteriana a otra se llama conjugación bacteriana, por lo que podemos concluir que el pilus es la estructura o apéndices que causa la transferencia de plásmido.
The Soviet Union
but the first man on the moon was the US