Researchers want to study behaviors in lions. They
observe the social interactions of various groups of lions
living in zoos.
What are two limitations of this model?
A. Lions in a zoo are not related to lions in the wild, so they cannot
be compared.
B. The presence of the researchers may affect the lions' behavior.
c. The environment of the zoo may cause the lions to behave
differently than they would in a natural habitat.
D. Observing lions in a zoo would be just as dangerous to the
researchers as observing them in the wild.