MidtermTwo2010B KEY

MidtermTwo2010B KEY - Latest revision 8:37 AM Name STUDENT...

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Latest revision: 3/19/10, 8:37 AM Name STUDENT ID Number 2nd MIDTERM EXAM KEY BIEB 166, Animal Behavior & Communication Winter Quarter, 2010 This exam should consist of 7 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 116 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). PLEASE USE A PEN . ONLY EXAMS WRITTEN IN PEN CAN BE SUBMITTED FOR REGRADE REQUESTS! The exam will end at 1:50 pm. Good luck!
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BIEB 166: Animal Communication & Behavior Initials:____________________________ 2nd Midterm Exam total student points on this page:______ 2 1) The following questions deal with the honey bee waggle dance a. (4 pts) You observe a honey bee waggle dancing as shown below for a feeder 200 m away. Imagine that the paper of this exam corresponds to a vertically oriented comb surface and the line drawn shows the path of the dancer. The arrow shows how her head is oriented during the waggle dance. With respect to the sun, where is the feeder located? In the direction of the sun’s azimuth. (In the direction of the sun is sufficient for full credit.) b. (6 pts) You then shine a bright light inside the colony at 90° to the left of vertical , as shown in the figure below. The eyes of the waggle dancer are NOT painted. Please sketch (inside the square below) how the waggle dance will look . Include an arrow to indicate the direction of her head during the waggle phase. If you make an error, please redraw the dance in a separate square and cross out your incorrect answer. c. (6 pts) You have set up multiple feeders in a circle with radius 200 m centered on the nest. You shine the bright light at 90° to the left of vertical as described in part b, and the waggle dancer (whose eyes are not painted) treats this bright light as if it were the sun. Where should the recruits show up? Please choose ONE of the following: i. Recruits will arrive at a feeder at 90° to the left of the sun’s azimuth. ii. Recruits will arrive at a feeder at 90° to the right of the sun’s azimuth. iii. Recruits will arrive at a feeder in the same direction as the sun’s azimuth. testing
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BIEB 166: Animal Communication & Behavior Initials:____________________________ 2nd Midterm Exam total student points on this page:______ 3 iv. Recruits will arrive at a feeder in the opposite direction from the sun’s azimuth.
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