1. Introduction to Biology
Experimental Design
Multiple Choice
Multiple ChoiceA scientist wants to study the effects of nitrogen on wheat plants. They set up an experiment with 4 groups of plants: group A gets 20 pounds of nitrogen per acre, group B gets 40 pounds per acre, group C gets 60 pounds per acre, and group D gets 0 pounds per acre. Which of the following is the control group? Is it a positive or negative control group?
A
Group A.
B
Group B.
C
Group C.
D
Group D.
2086
views
22
rank
Related Videos
Related Practice
Showing 1 of 14 videos