Well to begin with this process is called genetic engineering, the scientists altered the DNA of the chickens instead of altering a protein already in the chickens because when you alter the DNA the offsprings of the chicken will will have the same qualities while if you only alter the protein already in that chicken only that chicken will be able to do the job
Autotrophs are organism that is a Heterotroph.
The water from the ocean gets evaporated by the sun and travels as a gas into the clouds. As more and more water builds up in the clouds it will eventually rain or snow
