What does a resistor do in a circuit?

If there is but one resistor in the circuit, it will limit the current flow according to E = I*R

If there are two resistors in series in the circuit, they will affect a voltage divider.

Though you haven't asked for it, the voltage drop across the 3 ohm resistor is E = I*R

I = 5 amps

R = 3 ohms

E = 5 * 3 = 15 Volts

And through the 2 ohm resistor, you get

I = 5 amps

R = 2 ohms

E = 2*5

E = 10 volts.

So the total is 10 v + 15 v = 25 volts

Each resistor then has a reading in voltage across it. That is called a voltage divider.

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One "resistor" like a light bulb is made to give light and also to limit the current.

Independent variable (IV): Type of flowers

Dependent variable (DV): Growth of flowers

Constants: the same amount of sunlight, same amount of water

Control group: Four flowers were tested. Hydrangeas, roses, daisies, and tulips.

Explanation:

Dependent variable is the variable that is being measured in the experiment.

Constants or control variable is the variable that the experimenter keeps constant or unchanged throughout the experiment.

Idk if this is the answer fully. I only put the constants and variables.