Auxins in plants, herbicide disadvantages, and effects on dicot plants.
3.2.1: Auxins are naturally produced in apical meristems, young leaves, and developing seeds within a plant.
3.2.2: One function of auxins that results in the growth of a plant is their role in cell elongation in processes like phototropism and gravitropism, as well as leaf development and arrangement.
3.2.3: Two disadvantages of herbicides not made of plant hormones are environmental toxicity and the potential for residual effects on non-target plants and animals.
3.2.4: One disadvantage for a farmer using auxin herbicides in a field with dicotyledonous beans would be the high susceptibility of dicots to auxins, leading to non-selective damage to the crop alongside weeds.
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