Q: What type of joint is the knee joint? Choices: - ball joint - pivot joint - condyloid joint - hinge joint A:
hinge joint

Q: Acids turn blue litmus paper which color? Choices: - grey - white - purple - red A:
red

Q: 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: Q: Fatty acids, triglycerides, phospholipids, and steroids are examples of what? Choices: - tissues - enzymes - proteins - lipids A:
Answer: lipids

*Question*
Q: One of the main features all vetebrates have in common is what? Choices: - hard shell - brain - skeleton - backbone A:
**Answer**
backbone

Q: 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