Which of the following statements regarding resonance structures is true?

1) They differ only in their arrangement of electrons.

2) The true structure is a hybrid of possible resonance structures.

3) Different resonance structures are in equilibrium with each other.

4) All resonance structures must be equivalent.

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.

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?