Within a flock of birds, some birds have long narrow beaks, and other birds have short wide beaks. Environmental changes happen that make it harder for birds that have short wide beaks to find food. After several generations, most of the flock has long, narrow beaks. Which statement best describes the trait of the type of beak that a bird in this flock has?
Answer
A
Having a long, narrow beak is an inherited trait that is genetically passed down.
B
Having a long, narrow beak is an acquired trait that is determined by the availability of food.
C
Having a short, wide beak is an acquired trait that is found in birds that have learned to adapt to the environmental changes.
D
Having a short, wide beak is an inherited trait that is chosen by the bird as a result of its experiences.