Q: Molds and casts usually form in which type of rock? Choices: - igneous - metamorphic - crystalline - sedimentary A:
sedimentary

Q: What is the name of the muscle that contracts to cause the joint to straighten? Choices: - flexor - abductor - opposing - extensor A:
extensor

Q: Q: The partial pressure of each gas in a mixture is proportional to its what? Choices: - chemical fraction - lactic fraction - mesh fraction - mole fraction A:
A: mole fraction

Question: Q: What term means the amount of a substance required to form a saturated solution in a given amount of solvent at a specified temperature? Choices: - viscosity - concentration - turbidity - solubility A:
Answer: solubility

*Question*
Q: What are the two main parts of the human nervous system? Choices: - lungs, brain - lungs, spinal cord - brain, heart - brain, spinal cord A:
**Answer**
brain, spinal cord

(Q).
Q: When a wave travels down a string, the string vibrates up and down at right angles to the wave's what? Choices: - frequency - pressure - gravity - direction A:
(A).
direction