The graphs below explain how the major environmental change (the 1977 drought) affected the adaptations of the species of bird analyzed.
Which of the following can be determined from the graph? (CHOOSE 3)
The birds with the largest beaks did not survive the drought.
All birds wtih small beaks survived the drought.
The mean beak dept decreased after the drought.
The mean beak dept changed by 0.6 mm after the drought.
Birds with medium sized beaks were able to reproduce well.
The three statements that can be determined from the graph are:
1. The birds with the largest beaks did not survive the drought.
2. Birds with medium-sized beaks were able to reproduce well.
3. The mean beak depth decreased after the drought.