how does a dually innervated autonomic effector differ from a singly innervated autonomic effector? group of answer choices a dually innervated effector receives input from both sympathetic and parasympathetic pathways. a singly innervated autonomic effector receives input from only the sympathetic division. a dually innervated effector receives input from both sympathetic and parasympathetic pathways. a singly innervated autonomic effector receives input from only the parasympathetic division. a dually innervated effector utilizes both acetylcholine and norepinephrine as neurotransmitters. a singly innervated autonomic effector utilizes only acetylcholine. a dually innervated effector utilizes both acetylcholine and norepinephrine as neurotransmitters. a singly innervated autonomic effector uses only norepinephrine.