Whats the question so i can answer
Answer:
the femur
Explanation:
a vestigial structure is useless, and a femur bone is not uselsess
Answer:
Vinyl chloride is an organochloride with the formula H2C=CHCl that is also called vinyl chloride monomer (VCM) or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC).
Explanation:
Answer:D - adding a catalyst
Explanation: