HSA 2009 Biology Item 37
- CID
- CIDaa4e93c559f365f467470a35cecc7f40
- itemNum
- 37
- initialLetter
- A
- itemType
- SR
- itemAnswerKey
- 4
- itemMaxScorePoints
- 1
- origNum
- 47
Use the information below to answer the following item.
Methyl mercury is a toxic substance that can harm the nervous system. Some fish are contaminated with high levels of methyl mercury. In many places, these fish are an important food source. Experiments are being conducted to determine how many meals of contaminated fish can be safely consumed. The table below shows the concentration of methyl mercury in the fish and the number of meals that can be safely consumed per month.
The data collected during this experiment are summarized in the graph below.
The graph has been constructed incorrectly. Which of these needs to be corrected in order to improve the graph?
- The axes are labeled with inappropriate intervals.
- The dependent and independent variables are on wrong axes.
- The title is inconsistent with the investigation.
- One or both axes are missing units.