Graphing Hw to Base your answers to questions 47 through 49 on the information below and on your knowledge of
Ticks, such as deer ticks and dog ticks, feed on the blood of humans and other animals. Part of
the feeding process involves the tick injecting its saliva to help make blood flow. In the process,
they sometimes spread disease organisms to their bost. Sometimes ticks get on clothing, and can
remain there for a few days before actually biting their host.
A scientist found that ticks might be able to survive even when exposed to hot water and
detergent in a washing machine.
Students designed the experiment below to test bow well ticks survive a bot-water washing
machine cycle with detergent. Note that some details of the design are incorrect
Hypothesis: Can ticks survive a hot water and detergent wash cycle in a washing machine?
Data to be Collected: Number of ticks surviving the cold water wash cycle
Control Group
Test Subjects
Experimental
Experimental Setup
Number Used
47. Identify one error in the students' designs in the shaded area of the table and explain how the students
should change the experiment to correct the strer
Rorar
Correction
48. Explain why the students' proposed data to be collected would not Ielyet what the students
intended