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Biology, 21.10.2020 17:01 Softball6286
After the 2004 tsunami disaster in Asia, there were reports that trained elephants had moved away
from the coastline before the tsunami struck. Scientists wondered if elephants had sensed the oncoming wave and the earthquake that created it. Elephant trunks have two kinds of nerve endings that are sensitive to pressure differences, but little is known about nerve ending distribution in the elephant's skin or feet. An elephant has recently died at a nearby zoo and scientists have decided
to dissect one of its feet to search for any special nerve endings. Results show a high density of pressure-sensitive nerve endings in the front of the foot and along the edges, which supports the
idea that elephants are sensing seismic signals produced by such disasters as earthquakes.
1. Independent variable
2. Dependent variable
4. Constant
5.controls
6.hypothesis
7. Sample size
8. Presence of repeated measures
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Answers: 2
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After the 2004 tsunami disaster in Asia, there were reports that trained elephants had moved away
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