Q: What is often the cause of phenotypic differences between identical twins? Choices: - natural selection - genetics - learned behavior - environment A:
environment
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Q: What force opposes a motion of a moving body? for example a car breaking on a road. Choices: - tension - vibration - thermal - friction A:
friction
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Q: What can damage the hair cells lining the cochlea of the inner ear? Choices: - amelodic sounds - unexpected sounds - wavering sounds - loud sounds A:
loud sounds
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Q: Approximately how many galaxies are there in the universe? Choices: - an infinite number - a trillion - an octillion - about a hundred billion A:
about a hundred billion
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