Refer to the figure.
The figure is based on Johnson's controlled experiment on the effects of trematode parasites on tadpoles. The groups in the experiment were the groups containing a specific and different number of parasites per tadpole (0, 16, 32, 48). Which of these groups is the control group?
A) 0.
B) 16
C) 32
D) 48

Question

Refer to the figure.
 The figure is based on Johnson's controlled experiment on the effects of trematode parasites on tadpoles. The groups in the experiment were the groups containing a specific and different number of parasites per tadpole (0, 16, 32, 48). Which of these groups is the control group?
A) 0. 
B) 16 
C) 32 
D) 48

Quizplus · Accepted Answer

The Answer of Refer to the figure.
 The figure is based on Johnson's controlled experiment on the effects of trematode parasites on tadpoles. The groups in the experiment were the groups containing a specific and different number of parasites per tadpole (0, 16, 32, 48). Which of these groups is the control group?
A) 0. 
B) 16 
C) 32 
D) 48

Refer to the Figure