What is ozone?(1 point)

a type of fossil fuel that releases toxins into the air

a mixture of carbon dioxide and oxygen gases

a gas composed of molecules with three oxygen atoms

a gas produced when nitrous oxide combines with oxygen

Explain the physiological changes that occur when the hypothalamus stimulates the sympathetic nervous system. you can make a flowchart or a simple step process. be sure to include all chemicals/hormones secreted, glands involved and the functions of each chemical/hormone.