All neurons can produce chemical impulses and have within them an axon hillock that decides if the impulse will be produced or not. Learn how this dynamic processing center uses incoming signals from other neurons to make its decision.
The land form that would be best for farming would depend on what you're farming. The best type of land for farming crops would be flatland - or plains. In the south the area used for farming is the Piedmont area, the area between the hills and the coastal plains. The land form that would be best for farming would depend on what you're farming.
Both contour plowing and terrace farming are suitable for cultivating lands on sloping hills. Both are used to reduce soil erosion from tilled fields on slopes. In terrace farming, physical barriers (trenches, stone bunds, live hedges, or natural strips) are created along the contours to retain rain water and make it infiltrate into the soil and to minimize soil erosion.