BI-828
Factors affecting photosynthesis
Biology · Secondary 3 · Medium · Factors affecting photosynthesis
A student investigates how light intensity affects the rate of photosynthesis in pondweed. She counts the number of oxygen bubbles released in 1 minute at different distances from a lamp. Which variable is the dependent variable in this experiment?
- Distance of the lamp from the pondweed
- Number of oxygen bubbles released per minute
- Volume of water in the beaker
- Type of pondweed used
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