What is the ratio of effusion rates of krypton and neon at the same tempurature and pressure

Figure 10-1 study figure 10-1. the strong nuclear force felt by a single proton in a large nucleus

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.

Explanation for basic character?