Refer to the figure.

- The figure is based on studies of the effects of pesticides on the tadpole immune system. In a laboratory experiment, wood frog (Rana sylvatica) tadpoles were exposed to low or high concentrations of a pesticide, and then Ribeiroia parasites. The tadpoles were then examined for (A) numbers of eosinophils and (B) numbers of Ribeiroia cysts. Error bars show one SE of the mean. Compared with the control group, the frogs exposed to low concentrations of pesticides showed an increase _______ percent in the number of eosinophils.
A) 18
B) 32
C) 55
D) 78

Question

Refer to the figure.

- The figure is based on studies of the effects of pesticides on the tadpole immune system. In a laboratory experiment, wood frog (Rana sylvatica) tadpoles were exposed to low or high concentrations of a pesticide, and then Ribeiroia parasites. The tadpoles were then examined for (A) numbers of eosinophils and (B) numbers of Ribeiroia cysts. Error bars show one SE of the mean. Compared with the control group, the frogs exposed to low concentrations of pesticides showed an increase _______ percent in the number of eosinophils.
A) 18 
B) 32 
C) 55 
D) 78

Quizplus · Accepted Answer

The correct choice is 55 percent, as the data from the experiment indicates that the number of eosinophils in tadpoles exposed to low concentrations of pesticides increased by this percentage compared to the control group.

Refer to the Figure