Question

a scientist observed that tobacco plants flower only at certain times of the year. she grew five tobacco plants and exposed each to light for a specific period of time each day. each plant received 200ml of water daily. she recorded the flower growth each week for three months. study the diagrams below which show the results of this experiment.

flower
flower
flower
bud
bud

10 hours
12 hours
14 hours
16 hours
18 hours

hours of daylight

the independent variable is hours of daylight
the dependent variable is

Explanation:

The dependent variable is what is measured in an experiment, which depends on the independent variable (hours of daylight here). The experiment records flower growth (flower/bud development), so this is the dependent variable.

Answer:

flower growth