Farmers in a suburban coastal town started using no-till agriculture during

During the 20th century.

Explanation:

Non till farming is an agricultural method of farming or growing crops without tillage or tilling the soil. It decreases soul erosion and it increases water infiltration into the soil, retention of organic matter and nutrients cycling.

explanation:

the sequence of amino acids in a protein determines its function. the dna sequence of a gene determines the amino acid sequence of the resulting protein. thus, any changes in dna sequence can result in changes in protein function. this is called a mutation.