Q: What type of electrons are electrons that are not confined to the bond between two atoms? Choices: - virtualized - detached - internalized - delocalized A:
delocalized

Q: The outer layer of what anatomical structure is so tough that it keeps out most pathogens? Choices: - liver - steel - bark - skin A:
skin

Q: Q: What is the scientific name of the thighbone, the longest, heaviest, and strongest bone in the body? Choices: - fibula - humerus - tibia - femur A:
A: femur

Question: Q: What muscle in the chest helps inflate and deflate the lungs? Choices: - pectoral - cartilage - heart - diaphragm A:
Answer: diaphragm

*Question*
Q: Species distributions are a consequence of both ecological and evolutionary what? Choices: - fluctuations - particles - isolation - interactions A:
**Answer**
interactions

*Question*
Q: Which stage of life is typically easier for learning multiple languages? Choices: - adolescenc - infancy - adulthood - childhood A:
**Answer**
childhood