C. membrane bound organelles and no distinct nucleus
This process is called melting. When a solid melts, it turns into a liquid.
I have done GCSE sciences and also applied science a level so I could probably help you :)
Homeostasis is the biological ability to maintain internal stability. An example is you body temperature,how much water your body keeps or expels, and keeps levels of thinks such as blood cells normal. It helps your body functions to stay constant.