Answer:
Cultivator.
Explanation:
Instruments such as cultivator replaced the animal drawn farm implements because these instruments works quickly and more efficiently. This cultivator has long teeth which soften the soil for better root penetration and aeration of the soil. This instrument works with high speed and finished its work in hours not days which make it more preferable in agriculture than animals.
The presence of intros and repetitive sequences is a major contributor, as are the differences in the number of genes.
Plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA,amino acids, and proteins. ... The chemical process by which atmospheric nitrogen is fixed by bacteria into organic compounds that can be readily used by plants
