Question

effect of sunlight on plant growth
low sunlight (2 hr/day)
medium sunlight (6 hr/day)
high sunlight (10 hr/day)
plant height (cm)
days
which group of plants grew the tallest by day 10?—high sunlight group
how does the rate of growth compare between low, medium, and high sunlight?—
between which days does the high sunlight group show the fastest increase in height?—2 and 4
what might be a limitation of this experiment?—take to much time, plant might die
if the experiment continued for 20 days, what trend would you predict for each group?—most likely all of them straiten out

Explanation:

Step1: Analyze plant height at day 10

By observing the graph, at day 10, the high - sunlight group (10 hrs/day) has the highest plant height.

Step2: Compare growth rates

The slope of the lines represents the growth rate. The high - sunlight group has the steepest slope, followed by the medium - sunlight group, and then the low - sunlight group. So the high - sunlight group has the fastest growth rate, medium is second, and low is the slowest.

Step3: Identify fastest height increase for high - sunlight group

For the high - sunlight group, the line is steepest between days 2 and 4, indicating the fastest increase in height during this period.

Step4: Consider experiment limitations

Possible limitations include the long - term nature of the experiment (taking too much time) and the risk of plants dying during the process.

Step5: Predict long - term trend

If the experiment continued for 20 days, it is likely that all groups would reach a point of saturation or leveling off in growth as plants have limited growth potential.

Answer:

• Which group of plants grew the tallest by day 10? - High sunlight group
• How does the rate of growth compare between low, medium, and high sunlight? - High sunlight has the fastest rate, medium is second, low is the slowest
• Between which days does the high sunlight group show the fastest increase in height? - 2 and 4
• What might be a limitation of this experiment? - Takes too much time, plant might die
• If the experiment continued for 20 days, what trend would you predict for each group? - Most likely all of them level off