Wings of birds like ostrich have become weak due to disuse. ___ used this example to explain his theory on evolution.

Wings of birds like ostrich have become weak due to disuse. ___ used

1.	Wings of birds like ostrich have become weak due to disuse. ___ used this example to explain his theory on evolution.
Answer» Wings of birds like ostrich have become weak due to disuse. ___ used this example to explain his theory on evolution.