Question 9
Original source text (layout and all choices are preserved in the source panel below):
A farmer’s crop, X, has been attacked by Pest Y. He wants to get rid of Pest Y with the
help of their natural predators instead of using pesticides. Study the food web below.
Which predator(s) of Y should the farmer
introduce into his farm so that he can have the
best harvest of his crops?
A. Predators T and Z
B. Predators V and W
C. Predators T and W
D. Predator T only

A farmer’s crop, X, has been attacked by Pest Y. He wants to get rid of Pest Y with the
help of their natural predators instead of using pesticides. Study the food web below.
Which predator(s) of Y should the farmer
introduce into his farm so that he can have the
best harvest of his crops?
A. Predators T and Z
B. Predators V and W
C. Predators T and W
D. Predator T only
