In order to support his theory of evolutionary change, Charles Darwin concentrated his studies on the many species of finches in
the Galapagos Islands. Darwin noted that many of the birds had different shapes and styles of beak. What is a possible explanation for what Darwin observed? A) The birds had beaks that were adapted for feeding differently. Eliminate B) Some birds had been injured by predators and were poor competitors. C) People had bred the bird to have beaks with varied shapes and sizes. D) The birds had different beaks because females preferred certain beak shapes over others.
B. The levels of classification increased. Previously there were only 2 domains of life, Bacteria and Eukarya, but an additional domain and Kingdom were added when the distinction of Archaea was observed.
