Ques: Answer the following question given this paragraph: Q: What organ provides the integrative power that underlies the complex behavior of vertebrates? Choices: - the skin - the liver - the heart - the brain A:
Ans: the brain

Ques: Answer the following question given this paragraph: Q: What helps form the walls of internal organs such as the heart and stomach? Choices: - blood - tissues - valves - muscles A:
Ans: muscles

Ques: Answer the following question given this paragraph: Density describes how much matter is in a certain amount of space. Substances that have more matter packed into a given space have higher densities. The water in a drinking glass has the same density as the water in a bathtub or swimming pool. All substances have characteristic densities, which does not depend on how much of a substance you have. Q: What describes how much matter is in a certain amount of space? Choices: - volume - mass - viscosity - density A:
Ans: density

Ques: Answer the following question given this paragraph: Sedimentary rocks are laid down horizontally with the oldest at the bottom. Q: What type of rocks are laid down horizontally with the oldest at the bottom? Choices: - crystalline - metamorphic - igneous - sedimentary A:
Ans:
sedimentary