BCP 102 SO: v8 (First Timers)
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Question 1 of 10
1. Question
WILD COCHLEAS: Bats can be in a cave with a million other bats and not get overwhelmed with the sonar of other bats screaming at them from every direction.
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Question 2 of 10
2. Question
WILD COCHLEAS: Kids can hear sounds that vibrate 20,000 times a second. Older folks have trouble with high sounds over 16,000 hz.
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Question 3 of 10
3. Question
D COCHLEAS: Whales cannot detect sounds too low for us to hear. They can hear only sounds that we hear.
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Question 4 of 10
4. Question
WILD COCHLEAS: The wide front of the inside of the snail-shaped cochlea has stiff hairs. These detect low sounds like the booming of a bass drum.
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Question 5 of 10
5. Question
WILD COCHLEAS: Animals, such as elephants and whales hear infrasound—sound higher than we can hear.
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Question 6 of 10
6. Question
WILD COCHLEAS: Dolphins and bats can hear sounds higher than we can hear.
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Question 7 of 10
7. Question
WILD COCHLEAS: Bats, like the horseshoe bat, can tell sounds apart that are 1/10 of vibration less than another’s when vibrating 180,000 times a second.
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Question 8 of 10
8. Question
WHALE SOUNDS: Whales are masters of LOUD sounds. They can hit 280 decibels! Jet engines reach just 140 decibels.
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Question 9 of 10
9. Question
WHALE SOUNDS: Whales in the waters off New York can communicate with whales all the way across the Atlantic Ocean off the shores of California.
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Question 10 of 10
10. Question
WHALE SOUNDS: In WW2 we learned that there was a section of the ocean at 3000 feet that’s now named the SOFAR channel. Fin Whales like to go there.
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