Which of the following best shows the speed of particles movement from fastest to slowest

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

What is the mass of 0.750 mole of aluminum oxide, al2o3?