Q: Answer the following question given this paragraph: Immovable joints allow no movement because the bones at these joints are held securely together by dense collagen . The bones of the skull are connected by immovable joints. Q: What secures together immovable joints and prevents them from moving? A: | OPTIONS:
- light collagen
- light cartilage
- dense cartilage
- dense collagen
A: dense collagen

Q: Answer the following question given this paragraph: Define physical change, and give examples of physical change. Q: Water molds mostly live in water or moist? A: | OPTIONS:
- cells
- biomes
- plants
- soil
A: soil

Q: Answer the following question given this paragraph: Heat Transfer to an Ectothermic Reptile. This crocodile is being warmed by the environment in three ways. Heat is radiating directly from the sun to the animal's back. Heat is also being conducted to the animal from the rocks it rests on. In addition, convection currents are carrying warm air from surrounding rocks to the animal's body. Q: What type of current carries warm air from surrounding rocks to an animal's body? A: | OPTIONS:
- electric
- ventilation
- radiation
- convection
A: convection

Q: Answer the following question given this paragraph: Vascular disorders involve problems with blood flow. For example, a stroke occurs when a blood clot blocks blood flow to part of the brain. Brain cells die quickly if their oxygen supply is cut off. This may cause paralysis and loss of other normal functions, depending on the part of the brain that is damaged. Q: Vascular disorders involve problems with the flow of what? A: | OPTIONS:
- mucus
- bacteria
- saliva
- blood
A: blood