Answer: germ theory
Explanation: Germ theory of disease is a theory in biology. It says that small organisms (called germs), also known as microbes, cause diseases. Most, but not all diseases are infectious diseases. The germ theory states that small organisms cause a reaction in the body of those who are infected. The body's reaction to infection is called a disease.
Reference: Wikipedia
Answer:
Balanced
Explanation:
It should be understood that the method used above by the farmers is known as artificial crossing, or artificial insemination when describing the act in animals.
This method is usually adopted to achieve an excellent results from two organisms of different traits.
In this case, the plant or crop with small fruits might have some needed traits like ability to withstand drought, which the other plants with big fruits does not have.
Therefore, the crossing will help to produced a plant which its fruit will be balanced with both traits.
Because a population is most likely going to survive and go away than a population with very sparable genetic variation.