Organisms can be multicellular or unicellular define and provide examples for each: Unicellular Multicellular Coordination Systems work together to process information received from stimuli and to produce appropriate responses Two coordination systems are responsible for maintaining the efficient functioning of all other body systems Body Systems and Responses The Endocrine System can be defined as… The Nervous System can be defined as... Central Nervous System (CNS): List the main systems of the body? (10) Peripheral Nervous System (PNS): Response to infectious and non-infectious diseases The Immune System can be defined as... Define and provide examples of: Infectious disease: Outline the role and function of the following parts of the stimulus–response model: Stimuli: Receptor: Define the two types of immunity: Active: Non-infectious disease: Innate: Response to changes in environment Control Centre: Effector: Response: