Answer the following question given this paragraph: In benzene, the true bonding between carbon atoms is neither a single nor a double bond. Rather, all of the bonds are a hybrid of a single and double bond. In benzene, the pi bonding electrons are free to move completely around the ring. Delocalized electrons are electrons that are not confined to the bond between two atoms, but are instead allowed to move between three or more. The delocalization of the electrons in benzene can best be shown by showing benzene with a ring inside the hexagon, with the hydrogen atoms understood. Q: What type of electrons are electrons that are not confined to the bond between two atoms? Choices: - virtualized - detached - internalized - delocalized A:
delocalized
Answer the following question given this paragraph: This drawing shows that the skin has many layers. The outer layer is so tough that it keeps out most pathogens. 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: Answer the following question given this paragraph: The femur, or thighbone, is the longest, heaviest, and strongest bone in the body. The femur and pelvis form the hip joint at the proximal end. At the distal end, the femur, tibia, and patella form the knee joint. The patella, or kneecap, is a triangular bone that lies anterior to the knee joint. The patella is embedded in the tendon of the femoral extensors (quadriceps). It improves knee extension by reducing friction. The tibia, or shinbone, is a large bone of the leg that is located directly below the knee. The tibia articulates with the femur at its proximal end, with the fibula and the tarsal bones at its distal end. It is the second largest bone in the human body and is responsible for transmitting the weight of the body from the femur to the foot. The fibula, or calf bone, parallels and articulates with the tibia. It does not articulate with the femur and does not bear weight. The fibula acts as a site for muscle attachment and forms the lateral part of the ankle joint. 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: Answer the following question given this paragraph: Mammals breathe with the help of a diaphragm. This is the large muscle that extends across the bottom of the chest below the lungs. When the diaphragm contracts, it increases the volume of the chest. This decreases pressure on the lungs and allows air to flow in. When the diaphragm relaxes, it decreases the volume of the chest. This increases pressure on the lungs and forces air out. Q: What muscle in the chest helps inflate and deflate the lungs? Choices: - pectoral - cartilage - heart - diaphragm A:
Answer: diaphragm
*Question*
Answer the following question given this paragraph: Q: Species distributions are a consequence of both ecological and evolutionary what? Choices: - fluctuations - particles - isolation - interactions A:
**Answer**
interactions
*Question*
Answer the following question given this paragraph: Q: Which stage of life is typically easier for learning multiple languages? Choices: - adolescenc - infancy - adulthood - childhood A:
**Answer**
childhood