Question

Paolo hypothesizes that thick leg muscles are an inherited trait in dogs. He collects data about several dogs. The data show that dogs that live outdoors have thicker leg muscles than dogs that live indoors. What should Paolo conclude?
Inheritance of thick leg muscles is associated with coat thickness.
Inheritance alone may not account for thick leg muscles.
Dogs that have thick leg muscles require more exercise than dogs that have thin leg muscles.
Dogs that inherit thick leg muscles may not survive indoors.