Recall that matter is neither created nor destroyed; but it can

transform or changed

Explanation:

you can change matter from one stay to the next but you cant actually create it or completely destroy it

stridor can't collapse a lung.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.