The main difference between the organisms are the uses of the appendage and the size and number of certain bones. The human arm is used for a variety of functions while the lizard's and the cat's are used for walking an climbing, the whale's for swimming, the frog's for support and the bird's and the bat's for flying.
Enzymes are proteins
protein synthesis ocurs in the ribosomes
Answer:
Another evidence of evolution is the convergence of form in organisms that share similar environments.
Answer:
A published opinion with supporting evidence.
