The hybrid zone may change depending on the fitness strength and the reproductive barriers of the hybrids.
It has no definite nucleus but a region containing chromosome called nucleoid.
A species that is brought into a place where it’s never lived is NOT a native species. This would be a non-native species. Native species are those that originated in the place. If humans moved them there, they would be called an “introduced species.”
Mutualism would be the correct term to describe the relationship between bees and flowering plants. This is because they benefit each other, and the benefits are mutual.
When DDT is washed into water bodies from farms and absorbed by aquatic life(i.e fish) animals like eagles and hawks who continuously feed on such animals will begin to lay eggs with soft egg shells that are very fragile thus endangering the the chicks from birth
