Question

which of the following is a part of accepted cell theory?
every living organism is composed of one or more cells, and all living cells have membrane - enclosed organelles.
every living organism is composed of one or more cells, and all living cells arise from preexisting cells.
all living cells arise from preexisting cells, and all living cells have membrane - enclosed organelles.
all living cells have membrane - enclosed organelles.

Explanation:

Cell theory states organisms are made of cells and cells come from pre - existing cells. Not all cells have membrane - enclosed organelles.

Answer:

Every living organism is composed of one or more cells, and all living cells arise from preexisting cells.