Which activity best displays muscles using a greater number of fast twitching fibers than slow twitch fibers?
a) cycling
b) running
c) swimming
d) weight lifting

Jason, a dog breeder, decides to mate a poodle with a golden labrador retriever. he wants to get puppies with the curly hair of the poodle and the color of the labrador. what concept is shown in this example? question 6 options: artificial selection adaptation evolution natural selection