Keesha experimented to study the rate of photosynthesis in the water plant Elodea. She placed a piece of Elodea in a beaker of water and set the beaker 10 centimeters (cm) from a light source. Keesha counted the bubbles released from the plant every minute for five minutes (min). She repeated the process two more times. First, she moved the light to 20 cm from the beaker, and then she moved the light to 30 cm from the beaker. Keesha’s setup and data are shown below. What is the outcome variable (dependent variable) in this experiment?(1 point)

Question

Keesha experimented to study the rate of photosynthesis in the water plant Elodea. She placed a piece of Elodea in a beaker of water and set the beaker 10 centimeters (cm) from a light source. Keesha counted the bubbles released from the plant every minute for five minutes (min). She repeated the process two more times. First, she moved the light to 20 cm from the beaker, and then she moved the light to 30 cm from the beaker. Keesha’s setup and data are shown below. What is the outcome variable (dependent variable) in this experiment?(1 point)
Responses

the number of bubbles produced
the number of bubbles produced

the type of plant placed in the beaker
the type of plant placed in the beaker

the amount of time the bubbles were counted
the amount of time the bubbles were counted

the distance of the light source from the plant

GPT-4o mini · Answer

The outcome variable (dependent variable) in Keesha's experiment is **the number of bubbles produced**. This variable depends on the conditions of the experiment, specifically the distance of the light source from the plant, as she is measuring the effect of light intensity on the rate of photosynthesis in the Elodea plant.