Why is mercury not visible from earth?

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.

Determine the reaction and balance the following equations urgent due in the morning

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?