The recent study (1973) by the Grants in the Galapagos Islands documented a drought that dramatically changed the availability of food to the island’s finches. Finches with larger beaks tended to survive the drought over other finches with smaller beaks. This study illustrates
A. mutation
B. organic change
C. random choice
D. natural selection
Answer:D
The recent study (1973) by the Grants in the Galapagos Islands documented a drought that dramatically changed the availability of food to the island’s finches. Finches with larger beaks tended to survive the drought over other finches with smaller beaks. This study illustrates
A. mutation B. organic change C. random choice D. natural selection