Group name:
HW11: Burying beetle biology
Names of participating group members:
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1. Tinbergen posed two questions about the proximal causes of behavior and two
questions about the ultimate causes of behavior (see section 51.5; pg 1146). In your
own words, describe the difference between proximate and ultimate causes of a
behavior. (1)
Which of Tinbergenàquestions is most applicable in the investigation shown in: (1.5)
Figure A? Explain, and indicate whether this is a proximate or ultimate question.
Figure B? Explain, and indicate whether this is a proximate or ultimate question.
Figure C? Explain, and indicate whether this is a proximate or ultimate question.
Group name:
2. State what you think is the scientific question the researchers were trying to answer
with the data they collected in Figure A. (1)
State a realistic hypothesis they may have used to answer that question. (1)
In 1-2 sentence(s), what is the take-home message of Figure A? (1)
3. State what you think is the scientific question the researchers were trying to answer
with the data they collected in Figure B. (1)
State a realistic hypothesis they may have used to answer that question. (1)
In 1-2 sentence(s), what is the take-home message of Figure B? (1)
Group name:
4. State what is the scientific question the researchers were trying to answer with the data
they collected in Figure C. (1)
State a realistic hypothesis they may have used to answer that question. (1)
In 1-2 sentence(s), what is the take-home message of Figure C? (1)
Group name:
5. Give two examples of a cost associated with this parental care behavior of burying
beetles. (1)
Give two examples of a benefit associated with this parental care behavior of burying
beetles. (1)
Describe how this example illustrates the concept that evolution shapes traits to
maximize fitness. (1.5)

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