the regulation of the internalconditions of a cell or organism to maintain optimum conditions for function in response to internal and external changes
What might automatic control systems involve?
nervous or chemicalresponses.
What must be kept constant in order for our tissues & cells to function properly?
the internal conditions of the body.
What are four main conditions to control?
bodytemperature
water
ion levels
glucose/blood levels.
What are the 2 control systems responsible for homeostasis?
nervous & endocrine system.
What part of the body regulates water & ion concentration?
kidneys
What part of the body regulates body temperature?
skin
What part of the body regulates blood / glucose levels?