What are the levels of organization in ecology?

Darwin’s studies of finches on the galápagos islands suggest that the finches’ differences in beak structure were most likely directly due to:

The nurse is liaising with the physical therapist and occupational therapist to create an activity management plan for a patient who has multiple sclerosis. what principle should be integrated into guidelines for exercise and activity that the team will provide to this patient in anticipation of discharge

Joseph lives in a country that lacks basic social infrastructure. moreover, the banking system is not managed properly. the level of education is low. in which type of country is joseph residing? generally, what is the trend of fertility rate in such countries?