Q: What type of force exists between two touching surfaces? Choices: - opposing - centrifugal - tension - friction A:
friction
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Q: What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body? Choices: - cells immune system - super immune system - immense immune system - innate immune system A:
innate immune system
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Q: What can protons and neutrons be broken down into? Choices: - molecules - strings - ions - quarks A:
quarks
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Q: Compared to thoracic and lumbar types, the cervical type of what structures carry the least amount of body weight? Choices: - nasal - nuclei - ametic - vertebrae A:
vertebrae
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