HSA 2006 Biology Item 49
- CID
- CID5a6ffa5e40b1ed42a218ac4a57a5e49c
- itemNum
- 49
- initialLetter
- itemType
- BCR
- itemAnswerKey
- N/A
- itemMaxScorePoints
- 4
- origNum
- x
Students studied a species of fish. They wanted to find out if these fish grow faster in warmer water. The students designed an experiment to determine how different water temperatures affect the growth of the fish.
They placed one fish in a tank at 26°C and another fish in a tank at 22°C. The fish were fed the same amount of food during the experiment. The mass of each fish was recorded at the beginning and at the end of the experiment. The data the students collected are shown in the table below.
Analyze the procedure and the data from the experiment. In your response, be sure to
- include the hypothesis that the students were most likely investigating
- explain whether their data supports this hypothesis
- describe how other variables would affect the outcome of the results
- explain how the experiment could be redesigned to gather more reliable data
Write your answer in your Answer Book.