Because the hemoglbin genes have been split into amino acids
I would think that an unweathered rock would be jagged while a weathered rock would be smooth because of water/wind or what ever weathered it.
Answer: when bright light is present, the pupil reduces in size, or flinching when feeling threatened
Explanation: i know what reflexes are :)
Arwin in 1856 proved that all pigeon breeds do originate from the Rock Dove and through a process of regression you can recreate the Rock Dove, the ancestor of all pigeon breeds. Hopefully that helped