The model below predicts that the begging level of full offspring (F) should essentially be zero, whereas hun-gry (H) and starving (S) offspring show intermediate and high levels of begging, respectively
Under what circumstances would we expect full offspring to start begging?
a. When the fitness costs of begging are higher.
b. When the fitness costs of begging are lower.
c. Only when the fitness costs of begging increase in a nonlinear fashion with begging level.
d. Under no circumstances; the full (F) individuals are by definition at begging level zero.
B
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