Sympathetic fibers leave the spinal cord in the

a) thoracolumbar region, and the postganglionic fibers secrete acetylcholine
b) craniosacral region, and the postganglionic fibers secrete acetylcholine
c) thoracolumbar region, and the postganglionic fibers secrete norepinephrine
d) craniosacral regions, and the postganglionic fibers secrete norepinephrine

The correct answer is: C) thoracolumbar region, and the postganglionic fibers secrete norepinephrine

The pathway of autonomic nervous system (sympathetic and parasympathetic) involves two:

                       1. Preganglionic neuron - from CNS (spinal cord or brain) to the autonomic ganglion, all of these fibers release acetylcholine (Ach)

                       2. Postganglionic neuron - from the autonomic ganglion to the cells of the effector organ, parasympathetic postganglionic fibers release acetylcholine while sympathetic postganglionic fibers release norepinephrine.

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

the wires in the toaster turning red and the toast crisping and turning brown