Why is that? Why have some organisms remained relatively unchanged over the years...except in size?
2007-05-10 16:02:09 · 3 answers · asked by KC 1 in Science & Mathematics ➔ Biology
They don't change because they are very well adapted to their environment, therefore there is no pressure for them to change.
2007-05-10 16:07:41 · answer #1 · answered by kt 7 · 2⤊ 0⤋
Because they are so well adapted.....crocodiles are the best killers on this planet today and have been unchanged for millions of years.
2007-05-11 13:13:37 · answer #2 · answered by Anonymous · 0⤊ 0⤋
They are obviously well adapated to their enviroment, or lack the capability to change. Change only occurs when there is a need and the conditions are right. (i.e. mutations, natural selection, bottleneck effect, founder effect).
2007-05-10 23:16:57 · answer #3 · answered by Soccer37 2 · 0⤊ 0⤋