There may be many forms of a single gene. Each such form is called an allele
The independent variable is the one variable you manipulate in the experiment
The dependent variable (or responding variable) changes as a result of the independent variable
The answer is <span>fermenting plant material to produce ethanol. The farmer was able to come up with a new product besides his harvested plants.He can now make this as a business and start to gain profit. Ethanol can also be linked as a source of material to make other related products. </span>
