<u>Plasma</u><u> membrane</u> is an example of a structure that is found in both prokaryotes and eukaryotes
Another of of structure which is common to both prokaryotes and eukaryotes is <u>cell wall</u>
Answer: Homeostasis is a resistance to change.
Explanation: There are many other examples of homeostasis in biology, like the pH of blood and the concentration of ATP in a cell.
I think the answer is "the older it is"
Reason: I might be wrong but is something (like a shell) gets buried in something (like sand), overtime many things (like dirt, soil, sand, etc.) will be on top of the original. This will make layers. So, the older rock is on the bottom since it has been there for the longest and it gets covered by other stuff (causing the layers).
Hope this helps! :) (If I'm wrong, sorry :( )
It tells us how they might have looked weighed, ate and tall the were