Posted by **Visitor** on Sunday, April 8, 2012 at 9:33pm.

Bats and dolphins both hear a ______ than humans do...

a.smaller range of pitches

b.smaller range of frequencies

c.larger range of resonances

d.larger range of pitches and frequencies

- Science 4th Grade -
**bobpursley**, Sunday, April 8, 2012 at 9:56pm
I am not certain exactly what a 4th grade teacher is supposed to be doing with this subject, but there is NO difference in pitch and frequency in common usage. Either a, or B is correct.

- Science 4th Grade -
**Visitor**, Sunday, April 8, 2012 at 10:09pm
I'm 4th grade and I know nothing of bats and dolphins. This is a question of my spring packet.

- Science 4th Grade -
**Visitor**, Sunday, April 8, 2012 at 10:14pm
The difference between pitch and frequensy is frequency is the characteristics of a wave length, and pitch is the result that we hear depending if it has a high or low frequency.

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