Question

A group of students designed an experiment to test whether fertilizer would promote flowering in pea
plants.
They gave one group of plants no fertilizer, another 5 milligrams (mg) per week, another group received
a10 mg per week, and the fourth group received 15 mg per day.
Which of the following would be a logical control group?
a. The group of plants that received no fertilizer.
b. The group of plants that received 5 mg/week
c. The group of plants that received 10 mg / week
d. The group of plants that received 15 mg / week

Answer 1

The logical control group among all the groups in the experiment would be the group of plants that received no fertilizer. The correct option would, therefore, be A.

In research, a control group represent the baseline group upon which dependent variables from other group can be compared. Hence, the group does not receive the independent variable treatment, unlike other groups.

In the case of the experiment to test whether fertilizer would promote flowering in pea plant, all the groups that received variable doses of fertilizer belongs to the experimental or treatment group while the group that receives no fertilizer would be the control group.  

More on the control group can be found here: https://brainly.com/question/17475243