Answer the following question given this paragraph: Hinge Joint. The knee joint is a hinge joint. Like a door hinge, a hinge joint allows backward and forward movement. Q: What type of joint is the knee joint? Choices: - ball joint - pivot joint - condyloid joint - hinge joint A:
hinge joint
Answer the following question given this paragraph: Certain indicator compounds, such as litmus, can be used to detect acids. Acids turn blue litmus paper red. Q: Acids turn blue litmus paper which color? Choices: - grey - white - purple - red A:
red
Q: Answer the following question given this paragraph: Why do charges flow in an electric current? The answer has to do with electric potential energy. Potential energy is stored energy that an object has due to its position or shape. An electric charge has potential energy because of its position in an electric field. For example, when two negative charges are close together, they have potential energy because they repel each other and have the potential to push apart. If the charges move apart, their potential energy decreases. Electric charges always move spontaneously from a position where they have higher potential energy to a position where their potential energy is lower. This is similar to water falling over a dam from an area of higher to lower potential energy due to gravity. Q: What is the scientific term for stored energy an object has due to its position or shape? Choices: - repeat energy - mechanical energy - new energy - potential energy A:
A: potential energy
Question: Answer the following question given this paragraph: Lipids are a diverse class of relatively nonpolar biomolecules that generally do not dissolve well in water. Common types of lipids include fatty acids, triglycerides, phospholipids, and steroids. Q: Fatty acids, triglycerides, phospholipids, and steroids are examples of what? Choices: - tissues - enzymes - proteins - lipids A:
Answer: lipids
*Question*
Answer the following question given this paragraph: Vertebrates. From the smallest of fish to us. One of the main features we all have in common is our backbone. The Vertebrates chapter describes the biological features of fish, amphibians, reptiles, birds, and mammals. Q: One of the main features all vetebrates have in common is what? Choices: - hard shell - brain - skeleton - backbone A:
**Answer**
backbone
Q: Answer the following question given this paragraph: Water is the main ingredient of many solutions. A solution is a mixture of two or more substances that has the same composition throughout. Some solutions are acids and some are bases. To understand acids and bases, you need to know more about pure water. In pure water (such as distilled water), a tiny fraction of water molecules naturally breaks down to form ions. An ion is an electrically charged atom or molecule. The breakdown of water is represented by the chemical equation. Q: What is the term for a mixture of two or more substances that has the same composition throughout? Choices: - fluid - simple liquid - structure - solution A:
A: solution