Sort the variables of these three studies based on whether they are independent or dependent variables.

Question

Sort the variables of these three studies based on whether they are independent or dependent variables.

Study 1: the effect of light on flowering patterns of plants
Study 2: the effect of penicillin on the growth of E. coli
Study 3: the effect of progesterone on the ovulation of rats

Answer 1

Study 1:

- Independent variable: light
- Dependent variable: flowering patterns of plants

Study 2:
- Independent variable: penicillin
- Dependent variable: growth of E. coli

Study 3:
- Independent variable: progesterone
- Dependent variable: ovulation of rats

Answer 2

Study 1:

- Independent Variable: Light
- Dependent Variable: Flowering patterns of plants

Study 2:
- Independent Variable: Penicillin
- Dependent Variable: Growth of E. coli

Study 3:
- Independent Variable: Progesterone
- Dependent Variable: Ovulation of rats

Answer 3

To determine whether variables are independent or dependent, we need to understand the relationship between them.

1. Study 1: the effect of light on flowering patterns of plants.
In this study, the independent variable is light. It is being manipulated to observe its effect on flowering patterns, which are the dependent variables. Therefore, the independent variable is light, and the dependent variable is flowering patterns.

2. Study 2: the effect of penicillin on the growth of E. coli.
In this study, the independent variable is penicillin. It is being manipulated to observe its effect on the growth of E. coli, which is the dependent variable. Therefore, the independent variable is penicillin, and the dependent variable is the growth of E. coli.

3. Study 3: the effect of progesterone on the ovulation of rats.
In this study, the independent variable is progesterone. It is being manipulated to observe its effect on the ovulation of rats, which is the dependent variable. Therefore, the independent variable is progesterone, and the dependent variable is the ovulation of rats.

So, to summarize:
Study 1 - Independent variable: Light; Dependent variable: Flowering patterns
Study 2 - Independent variable: Penicillin; Dependent variable: Growth of E. coli
Study 3 - Independent variable: Progesterone; Dependent variable: Ovulation of rats