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

The correct answer is :

Independent variable-

Light

Penicillin

Progesterone

Dependent variable-

flowering pattern of flowers

Growth of E. coli

Ovulation of rats.

Explanation:

Independent variable is a variable that is not depend on another which can be controlled or altered. Dependent variable is a variable that depends on the independent variable and can be change by changing in the independent variable.

In the given studies effect of light is independent variable as it can effect the flowering pattern of the plants as they they are variable. Same goes with penicillin and progesterone are independent and growth of E. coli and ovulation of rats are dependent variable.

Thus, the correct answer -

Independent variable-

Light

Penicillin

Progesterone

Dependent variable-

flowering pattern of flowers

Growth of E. coli

Ovulation of rats.

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