Question

according to the cell theory, which describes cells?
all organisms are composed of multiple cells.
all cells have the same structure and function.
cells are found in everything on earth.
all living cells come from other living cells.

Explanation:

Cell theory has three main tenets: all living organisms are composed of cells (which can be single - celled like bacteria or multicellular), cells are the basic unit of structure and function in living organisms, and all cells come from pre - existing living cells.

• The first option is incorrect because there are single - celled organisms (e.g., bacteria, amoeba).
• The second option is wrong as cells have diverse structures and functions (e.g., nerve cells vs. red blood cells).
• The third option is incorrect since non - living things (e.g., rocks) do not have cells.
• The fourth option aligns with the cell theory principle that all living cells come from other living cells (biogenesis).

Answer:

All living cells come from other living cells.