In the polyatomic ion NHA, the formation of a coordinate covalent bond between nitrogen and hydrogen involves

In a floral arrangement, the focal area is often

What is limiting reactant? with examples

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.