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Unformatted text preview: fur. 9. T F The hard life hypothesis and the habitat saturation hypothesis for cooperative
breeding are mutually exclusive. 10. T F In acorn woodpeckers, the fact that helpers do not increase the survivorship of
offspring when the acorn crop is bad supports the “hard-life” hypothesis of
group living. 11. T F Competition exists within cooperatively breeding groups. 12. T F Haplodiploidy results in sisters being more related to their mothers than their
own offspring, facilitating the evolution of eusociality. 13. T F In a eusocial group with little or no policing, actual conflict is likely. 14. T F A population playing an evolutionarily stable strategy (ESS) can never be
invaded by a mutant playing a different strategy. Page 3 of 8 Introduction to Behavior BioNB 2210 Exam 2, Oct. 29, 2012 MATCHING (1 point each)
Choose whether each of the following examples would support (a) the lottery hypothesis or (b) the red
queen/coevolution hypothesis for the evolution of sex.
17. Birch trees produce asexually when in homogeneous physical environments.
Snails produce sexually in the presence of trematode parasites.
Asexual rotifers escape their pathogens by drying up and blowing away. Match the example with the mating system:
21. Male milkweed leaf beetles roam in search of
a. resource defense polygyny
sedentary females, and when one is found,
b. female defense polygyny
will immediately climb on top of her to
c. lek polygyny
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This note was uploaded on 01/13/2014 for the course BIONB 2210 taught by Professor Seeley during the Fall '10 term at Cornell.
- Fall '10