4th Grade Science Quiz
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FROM MOLECULES TO ORGANISMS: STRUCTURES AND PROCESSES
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How does a dog receive information about a whistle sound and then respond by turning its head?
A
The whistle moves the dog's head, then the ears send signals to the brain afterward.
B
Ears detect the whistle, nerves signal the brain, brain processes, then neck muscles turn the head.
C
The brain hears the whistle first, then it sends signals to the ears to detect it.
D
Ears detect the whistle and the neck turns, but the brain does not process the sound.
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