Ex2-2012 - BioNB 2210 Exam 2 Oct 29 2012 Last name_First_MI...

BioNB 2210 Exam 2, Oct. 29, 2012
Page 1 of 8 Introduction to Behavior
Last name: ____________________First: _______MI_____ Cornell ID:____________
EXAM 2
BioNB 2210: Introduction to Behavior
1. Write your name on this exam AND on your scantron sheet.
2. Answers to all multiple choice, true/false, and
matching questions should be recorded on the
SCANTRON IN PENCIL. Short answer questions
should be written on this EXAM PAPER IN PEN.
The examples to the right show you how to fill in the
scantron “bubbles” properly.
3. Under Identification number, put the last 7 digits
of the number on your Cornell University ID card.
Leave no blanks between numbers, and blacken the
appropriate circles below each number. Start in the “A” column!
4. Write legibly. If we cannot read your answer, we cannot
grade it. Use ONLY the space provided. Do NOT use
calculators or any other electronic device.
5. Check to see that your exam paper is complete. This exam
packet has
8
pages.
6. Fill the answer circles completely. If you make erasures on the scantron sheet, do so completely. Multiple
answers will be scored as incorrect.
7. Check the box below corresponding to your discussion section TA’s name:
K. Loope G. Stamps J. Kapoor J. Lambert J. Miller 3 Credit
“By signing below, I acknowledge that I am abiding by Cornell University’s Code
of Academic Integrity.”
Signature: ___________________________________________________
Your scores
Q38 Q39 Q40 Q41 Q42 Q43 Q44 Q45 SA MC TF M Exam GB Total
4 3 4 4 5 5 4 4 33 18 16 23 90 10 100

BioNB 2210 Exam 2, Oct. 29, 2012
Page 2 of 8 Introduction to Behavior
MULTIPLE CHOICE (3 points each)
1. You are a behavioral ecologist who has just discovered a new beetle species that exhibits a bizarre
courtship behavior. Male beetles collect pebbles and create large piles. Females then choose
males based on the size of their pebble pile, mate with them, and then leave, laying their eggs
later under a leaf. Based on this information, which of the following is likely the PRIMARY
benefit of female choice in this newly discovered species?
a) Parental care of young
b) Resources
c) Good genes
d) None of the above
2. Sperm competition theory suggests that across species, male relative testes size (i.e. testes size
divided by body size), should…
a) …increase with female body size.
b) …decrease with female body size.
c) …increase with female mating frequency.
d) …decrease with female mating frequency.
e) …be highest in species with social monogamy.