Name ________________________________
Humans have used whales as a source of food and oil for several centuries. A study was conducted to determine the world-wide number of whaling boats by checking ship registries around the world. That information is provided in the graph below.
1. The dependent variable on this graph is ______________________________.
2. The most likely reason for the increase in whaling boats between 1920 and 1976
O A. the number of whales was increasing
O B. the demand for whale products was increasing
O C. the oceans were getting warmer
O D. whaling boat captains were having more sons
3. What was probably hapening to world whale population between 1964 and 1976
O A. whale population was increasing
O B. whale population was decreasing
O C. whale population was stable
O D. this cannot be infered from the graph
4. A treaty was signed to limit the number of whales that could be taken each year. In what year was the treaty probably signed
O A. 1942
O B. 1946
O C. 1976
O D. 1984
5. The broken line segment on the graph indicates
O A. data that was not available in the records
O B. data that was supported in the records
O C. data from something other than whaling boats
O D. data from years not represented on the graph
6. Which of these titles would be best for the graph
O A. Whale Population
O B. Whale Boats
O C. World-wide Whale Boat Registry - 1920 to 2000
O D. Whaling
7. What was the most likely cause of the drop in the number of whaling boats between 1942 and 1946?
O A. declining whale populations
O B. bad weather world-wide
O C. a drop in demand for whale products
O D. World War II
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An experiment was set up to expose apples to different concentrations of the hormone ethylene. The results of that experiment are shown in the data table.
8. Which hypothesis is this experiment testing?
O A. Ethylene changes the rate at which fruit mature
O B. Ethylene increases the rate at which fruit mature
O C. Ethylene slows the rate at which fruit mature
O D. Ethylene is a hormone
9. Which concentration of ethylene serves as the control?
O A. 35 ml/m2
O B. 25 ml/m2
O C. 10 ml/m2
O D. 0 ml/m2
10. Which type of apple matures faster when exposed to ethylene?
O A. Wine sap
O B. Golden
O C. Gala
O D. cannot be determined from the data
|
Ethylene Concentration
(ml/m2) |
Wine sap Apples:
Days to Maturity |
Golden Apples:
Days to Maturity |
Gala Apples:
Days to Maturity |
| 0 | 16 | 16 | 18 |
|---|
| 10 | 14 | 14 | 15 |
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| 15 | 12 | 12 | 13 |
|---|
| 20 | 11 | 9 | 10 |
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| 25 | 10 | 7 | 9 |
|---|
| 30 | 8 | 7 | 8 |
|---|
| 35 | 8 | 7 | 7 |
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| 40 | 8 | 7 | 7 |
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Plot the ethylene data on this grid.
- Add appropriate labels and scales.
- Since this graph will have three different lines, draw them in such a way that the three types of apples can be recognized on the graph.
11. A good title for this graph would be
__________________________________________________
12. Graphs with more than one line should have a "key" to indicate the variable represented by each line. Show the key for your graph in the space below.
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13. What would you expect the results to be if the concentration of ethylene was increased to 45 ml/m2? Give your answer in the form of a complete sentence below.