The concentration of body fluids must be kept constant (homeostasis).Question 27Select one:TrueFalse

Homeostasis refers to the constant internal environment that organisms maintain.Question 15Answera.Trueb.False

Which of the following best defines homeostasis?Multiple choice question.The rigid altering of internal conditions to conform to an absolute set pointThe guiding of internal conditions toward an extremeThe maintenance of normal internal conditions within certain boundaries

Homeostasis refers toGroup of answer choicesindividual cells becoming specialised to perform specific functionsthe maintenance of a stable internal environmentthe chemical operations underway in the bodychanges in an organism’s immediate environment

In mammals, homeostasis is maintained by the ________.Group of answer choicesnervous and digestive systemsendocrine and nervous systemsendocrine and respiratory systemsrespiratory and digestive systems

Which of the following is the BEST definition of homeostasis?*1 pointMaintenance of a variable internal environment of a living organismMaintenance of a constant external environment of a living organismMaintenance of a constant internal environment of a living organismMaintenance of a constant internal and external environment of a living organism