Regarding the extent to which food deprivation of pigeons is ethical versus unethical, it is argued that
A) their deprived weights are actually close to their natural weights.
B) food restriction appears to increase an animal's sensitivity to pain.
C) a certain degree of food restriction is actually healthy.
D) Both a and c are correct.
Question 2
To ensure that pigeons are strongly motivated to respond for food, they are generally
A) food deprived for at least 12 hours prior to each session.
B) kept at starvation level.
C) kept at 80-85 of their free-feeding weight.
D) Both b and c are correct.