BIO 2601 || with Error-free Solutions.

milieu intérieur correct answers describes the internal environment of organisms as distinct from the external environment what was Bernard interested in? What did he study? correct answers blood glucose in mammals define conformity correct answers allowing the internal environment to cary due to external environment mixed conformity meaning? correct answers some animals can both conform and regulate. Example salmons conforms to temperature but regulates chloride concentration pros and cons: regulation correct answers pro - cells experience constant conditions con - energetically costly pros and cons: conformity correct answers pro - energetically cheap con - cells must have mechanisms to cope with variability regulation has limits, what is this called? correct answers zone of tolerance zone of tolerance, define correct answers zone in which the organism can regulate internal environment. however they conform when outside of this zone what hypothesizes physiological mechanisms? correct answers homeostasis regulation vs control correct answers regulation = you need the whole system to regulate control = the ability to change the # of the variable negative feedback system correct answers works to return the value to the setpoint on/off vs proportional control correct answers on/off = controlling system is on fully or off proportional control = magnitude of how you will control the internal environment is dependent on how far you are from set point how is homeostasis achieved correct answers hormonal, neuronal, biochemical and molecular positive feedback correct answers control system reinforces deviations of a controlled variable from set point scaling, define correct answers the study of how structural mechanical physiological properties change with changing size isometric vs allometric scaling correct answers isometric = direct proportionality (linear) allometric = proportionality changes with size (non-linear)