Why is it important for an organism to be able to detect changes in its internal environment?

Question

anonymous · Answer

If your body couldn't detect bacteria changing your internal environment what do you think that would do? There are other reasons as well.

koikkara · Answer

$\large\rm\color{green}{Response~ to~ stimuli, ~}$ helps the organism to stay in balance. Living organisms have some senses (sight, smell, touch, taste, etc) that help them to detect changes in their external environment, as well their internal balance and respond to them. $For~Example,$ For instance, our bodies need to keep a constant body temperature, glucose level, water level and so on for the cells to function properly. But conditions outside our bodies such as temperature, exercise, eating and so on, often affect our internal balance. The term used to to describe the ability of an organism to maintain balance in its internal environment is called $\large\rm\color{blue}{Homeostasis.}$ $Ref:$ http://www.answers.com/Q/Why_is_it_important_for_organisms_to_respond_to_external_environment_factors $OR$ @kayleannnicole https://uk.answers.yahoo.com/question/index?qid=20131007020014AAr9sXF $\large\rm\color{green}{Nice~to~meet~you~!}$