Answer: D!! ( difference in the potential energy of the reactants and products )
Explanation:
i have the same test
Answer:
Vestigial Structures
Explanation:
Structures that were needed for an organism's ancestor, but no longer required for survival for the current organism. We needed our wisdom teeth and appendix in order to eat tougher foods, but now we do not need those to survive. But, we still have them.
PH = -log [H+]
pH = -log (1.0x10^-4) = -(-4) = 4 or A
Its a Reflector
Reflector is some sort of material that is used to collect or bounce off energy such as sound, light, or radio wave
Usually it took form in some sort of parabolic that revolve around an axis
