Answer:
Recombinant DNA technology or genetic engineering.
Explanation:
Genetic engineering is a process that uses some techniques to cut and join DNA from biological species and introducing the novel DNA into another organism in order to form new combinations of traits or characters that can be inherited.
Answer:
it's 2
I don't know how to explain but yeah its 2
Population and nutrients, This is because if you have a large population then you must need a certain amount of nutrients to suit the population