There must be a change in the chemical composition of the substance and the change is highly irreversible
Compare reef and lion population sizes , amount of fish , peaked at 6 , lionfish started to increase population size at round 11 and 12, reef fish started to decrease as lion fish grew .
Which proposes that once species<span> appear in the </span>fossil record<span> they will become stable.... i think i just wanted to help......</span>
Onion skin is a plant cell. And your skin cell is a animal cell.
Basically as simple all the structures in animal cell can be found in plant cells. But plant cells has some extra structure and part where doesn't exist in animal cells.
In animal cell, it contains a cytoplasm, nucleus and a cell membrane.
But in plant cell, they have chloroplast, cell wall and vacuole in additional.
