3. Limitation of resources due to space & carrying capacity
4. Uniqueness of the individual (resemblances)
5. Inheritance of individual variation
These five facts
are the basis of biological wealth or life's diversity.
Darwin and the Darwinian Revolution
Ecology as the study of unanticipated “side
Aswan High Dam
is a case study.
The dam pictured here blocked the migration of fish and the renewal of sediment to the lower Nile River Valley so that the once fertile Nile Delta was starved for nutrients and fisheries declined.