Which of the following statements best supports that the jaw angle on Island B changed via punctuated equilibrium? (A) Fossil evidence has shown that over time the jaw angle on Island B slowly increased.
(B) Fossil evidence has shown that the jaw angle of the mice on Island B increased very quickly.
(C) Fossil evidence has shown that over time the jaw angle on Island B slowly decreased.
(D) Fossil evidence has shown that the jaw angle of the mice on Island B fluctuates over time.

A chain of three small islands was found to be the home to a small species of mouse. The angle of jaw opening was found to vary significantly. The average size angle of the maximal jaw opening found in mice at 10 locations on the three small islands is shown in Figure 1, below.

Transcribed Image Text:

Island A A1: 22° A2: 21° A3: 22° Island B B4: 32° B1: 31° Island C B3: 32° B2: 34° C1:219 €3: 21° C2: 21°