Question: Q: Knees and elbows are examples of what part of the skeletal system? Choices: - cartilage - muscles - nerves - joints A:
Answer: joints

Question: Q: The afferent arterioles service about 1.3 million of what in each kidney? Choices: - dendrites - axons - neurons - nephrons A:
Answer: nephrons

Question: Q: What layer is below the lithosphere and in the upper mantle? Choices: - troposphere - magnetosphere - hydrosphere - asthenosphere A:
Answer:
asthenosphere