To study whether an olfactory receptor neuron is activated by pyradine a researcher employs an imaging technique that utilizes a chemical indicator that glows green when exposed to ultraviolet light. if a decrease in the intensity of glow observed corresponds to an increase in ionic concentration in the olfactory receptor neuron in response to an odorant, which ion would this indicator chelate? choose 1 a. potassiumb. sodiumc. chlorided. calcium

Hurry i need your (100 points) 1) what are the responsibilities of the region of the brain highlighted below? (picture located below) the highlighted portion is at the rear base of the brain, behind the brain stem. regulating homeostasis, hunger and eating, thirst and drinking, and many other functions of basic survival. coordinating movement and balance by using information from sensory nerves, including hand-eye coordination. controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities. regulating important involuntary bodily functions such as blood pressure, heart rate, breathing, and swallowing. 2)which of the following systems or structures is correctly paired with its function? neurons - brain cells that control thoughts, calculations, and memory cerebral cortex - portion of the brain that controls involuntary body movement peripheral nervous system - carries impulses to and from the central nervous system central nervous system - carries information from the nerves to the muscles and glands

Angiosperms are the most successful terrestrial plants. which of the following features is unique to them and account for their success? a. fruits enclosing seeds b. wind pollination c. sperm cells without flagella d. embryos enclosed within seed coats e. dominant gametophytes

What is a radical? a group of atoms that give off radiation a group of atoms that act like one atom a group of ions that have no charge a group of ions that break up during a reaction