Q: What feature of the spine helps with flexibility and strength? Choices: - shape - angle - arrangement - curves A:
curves

Q: What system consists of glands that secrete hormones into the bloodstream? Choices: - Respiratory system - nervous system - Muscular system - the endocrine system A:
the endocrine system

Q: Q: What are the extremely small particles that comprise all matter? Choices: - ions - protons - electrons - atoms A:
A: atoms

Question: Q: What is the beneficial function to the body of sweating? Choices: - pheromone release - diuretic effect - calorie loss - regulating body temperature A:
Answer: regulating body temperature

*Question*
Q: What involves the reaction of a hydrocarbon with oxygen gas to produce water and carbon dioxide? Choices: - hydrogen reactions - chemical reactions - material reactions - combustion reactions A:
**Answer**
combustion reactions

Q: Q: Iron is oxidized to fe2+(aq) at an anodic site on the surface of the iron, which is often an impurity or this? Choices: - displacement defect - spontaneous mutation - ladder complex - lattice defect A:
A: lattice defect