How is the cell thoery similar to the theory of evolution ?

Question

like how does the cell theory support the theory of evoltion?

Answer 1

Cell theory says that cells are a functional unit of every living thing on Earth.  So far, we haven't found anything to discredit this idea (viruses aren't cellular, but then again, viruses aren't technically alive).  Because the cell theory is a common thread linking all living organisms, it also hints at their common ancestry.  For example, if half of the living organisms were made of cells and half were made of something else, say, non-cellular proteins, then it would cast serious doubt on the idea that we are all descended from a common ancestor.  We don't see that, though, so it looks like we're all (distantly) related.

I hope that helps.  Good luck!

Answer 2

Neither of these should be called the theory, except in a historical sense. Modern cell "theory" , according to Wikipedia, states that

   1. The cell is the fundamental unit of structure and function in living things.

   2. All cells come from pre-existing cells by division.

   3. Energy flow (metabolism and biochemistry) occurs within cells.

   4. Cells contain hereditary information (DNA) which is passed from cell to cell during cell division

   5. All cells are basically the same in chemical composition.

   6. All known living things are made up of cells.

   7. Some organisms are unicellular, made up of only one cell.

   8. Others are multicellular, composed of countless number of cells.

   9. The activity of an organism depends on the total activity of independent cells

All of these are by now well verified facts.

Likewise, the facts of evolution are well established, from the fossil record, similarities among modern organisms, DNA evidence confirming and in some cases refining family relationships based on a modern and fossil anatomy, and the observation of evolution even within the brief time that we have been studying the subject, especially (but not exclusively) in rapidly reproducing organisms such as bacteria.

What you may be thinking of is called the "unity of biochemistry"; the fact that all organisms have the same basic molecular structure, with the same DNA coding and translation machinery. This is what we would expect if all things now living were descended from a single common ancestor, but I think it is a bit of a stretch to call this part of "cell theory".