MidtermTwo2007keyA

MidtermTwo2007keyA - Latest revision: 5/17/07, 9:29 AM Name...

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Latest revision: 5/17/07, 9:29 AM Name STUDENT ID Number 2ND MIDTERM EXAM KEY VERSION A BIEB 166, Animal Behavior & Communication Spring Quarter, 2007 This exam should consist of 8 pages (including this top page); please check that your exam is complete. Sign your initials in the space provided on each page . Please write your answers only in the spaces provided on each page. You may use the back of the pages as a “scratch sheet”, but we will not grade anything written on the back of the page. The exam has a total of 96 points; allot time to each question based upon its point value, and budget your time carefully. (You might want to leave a little time at the end for checking over your answers). The exam will end at 11:50 AM. Good luck!
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BIEB 166: Animal Communication & Behavior Initials:____________________________ Page 2 of 9 total student points on this page:______ IMPORTANT! For multiple choice questions, there is only one correct or best answer per question. Circling more than one answer per question is incorrect. 1) (4pts) As discussed in lecture, which of the following statements about Fourier analysis is incorrect ? (a) Through Fourier analysis, any sound can be broken down into a series of component frequencies. (b) The time-frequency uncertainty principle states that the frequency uncertainty increases as the signal gets longer. (c) The more a signal deviates from a single frequency sine wave, the more sine wave components must be added together to recreate the signal. (d) The Fourier phase spectrum of a signal shows how the phases of the different frequencies in the signal are shifted relative to each other. (e) The Fourier spectrum of a signal is a graphical representation of the frequencies in the signal and their relative amplitudes. 2) (4pts) As discussed in lecture, which of the following statements about sound is incorrect ? (a) In the near-field, there is a net displacement of particles. (b) The free field is an idealized sound field in which there are no echoes and in which sound spreads spherically. (c) In general, infrasound travels over greater distances than ultrasound if both sound types are produced at the source with the same amount of energy. (d) In the far-field, there is no net displacement of particles. (e) In general, the particle velocity component of sound carries for greater distances than the pressure component of sound. 3) (4pts) Gould conducted a famous misdirection experiment to show that honey bees could use the waggle dance to communicate food location. Based upon what we learned in lecture, which of the following statements is correct ? (a) He partially painted over the eyes of the waggle dancer so that she would not see the sun outside the nest. (b) He placed the hive on its side and then showed the bees a patch of sky in order
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This note was uploaded on 08/19/2010 for the course BIEB BIEB 166 taught by Professor Nieh during the Spring '06 term at UCSD.

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MidtermTwo2007keyA - Latest revision: 5/17/07, 9:29 AM Name...

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