All living things must take in and use energy to preform the functions associated with life. Which of the following functions are required for organisms to maintain a constant internal environment? Select all that apply.

Ithink the answer is b
not sure

1.wear safety goggles when heating or mixing substances 2.tie back long hair when doing experiment in order to prevent from catching fire or dipping into chemicals accidentally 3.keep all exits and passages clear4.wear laboratory coats