A student says that since the atomic theory is just a theory, it should not be considered useful. Which statement best argues against the student’s opinion? Scientific theories change over time.
Scientific theories are the results of many experiments and observations.
Scientists often do not agree about specific details of scientific theories.
Scientists often propose competing theories.
Scientific theories do not become Scientific Laws.

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.

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f