Multiple Choice
In an experiment (Arnott and Elwood 2007) , some hermit crabs, who use empty snail shells as shelters, were induced to change their fighting strategies such that they fought harder if they were in the role of attacker, but gave up more easily when in the role of defender. In this case, this occurred because they
A) had been shown a hidden cache of higher quality shells the other crabs weren't yet aware of.
B) had lost previous arranged fights.
C) had recently eaten.
D) were carrying a shell with an unpleasantly scratchy inside surface produced by the experimenter.
Correct Answer:

Verified
Correct Answer:
Verified
Q3: If V=value of the resource, W=cost of
Q4: If you are the daughter of a
Q5: If a conditional strategy, such as the
Q6: The ideal free distribution<br>A) automatically occurs once
Q7: To construct hypotheses about the evolution of
Q9: If V=value of the resource, W=cost of
Q10: Patterns of glucocorticoids across dominant and subordinate
Q11: If V=value of the resource, W=cost of
Q12: The entire area in which an animal
Q13: An area that is defended from intruders