Which of the Following Observations Would Provide Evidence Supporting Lamarck's

Multiple Choice

Which of the following observations would provide evidence supporting Lamarck's proposed evolutionary mechanism of "inheritance of acquired characteristics"?

A) a decrease in tail length in dogs after 20 generations of dogs that had their tails docked (cut off) as puppies
B) an increase in the length of giraffes' necks after trees in the area decreased in height
C) a decrease in the size of the tails of salamanders in a population that immigrated into a cave 20 generations earlier
D) an increase in average speed of deer on an island when the amount of food increased