Question
A scientist wants to determine which fertilizer is more effective—Fertilizer X or Fertilizer Y. The best way for her to proceed would be to design an experiment with
A.
three groups of plants—a group fertilized by X, a group fertilized by Y, and a control group with no fertilizer.
B.
three groups of plants—a group fertilized by X, a group fertilized by both X and Y, and a control group with no fertilizer.
C.
two groups of plants—a group fertilized by Y and a control group with no fertilizer.
D.
two groups of plants—a group fertilized by X and a control group with no fertilizer.
A.
three groups of plants—a group fertilized by X, a group fertilized by Y, and a control group with no fertilizer.
B.
three groups of plants—a group fertilized by X, a group fertilized by both X and Y, and a control group with no fertilizer.
C.
two groups of plants—a group fertilized by Y and a control group with no fertilizer.
D.
two groups of plants—a group fertilized by X and a control group with no fertilizer.
Answers
Answered by
GPT-4o mini
The best way for the scientist to determine which fertilizer (X or Y) is more effective would be to include both fertilizers in her experiment for comparison. Therefore, the correct option is:
**A. three groups of plants—a group fertilized by X, a group fertilized by Y, and a control group with no fertilizer.**
This design allows for a direct comparison between the effectiveness of Fertilizer X and Fertilizer Y, as well as an understanding of how plants perform without any fertilizer.
**A. three groups of plants—a group fertilized by X, a group fertilized by Y, and a control group with no fertilizer.**
This design allows for a direct comparison between the effectiveness of Fertilizer X and Fertilizer Y, as well as an understanding of how plants perform without any fertilizer.