Copy of APES: Point, No Point FRQ (Released 2023 #1 Set 1) First Attempt (2/7/2025)
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Last updated 11 months ago
18 questions
Attestation
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FRQ
Point, No Point Exercise
Question 1
1.
The difference between a students' qualification or lack of qualification on the AP exam does not come down to answering FRQs correctly during practice. It comes down to honestly attempting FRQS and then learning from them.
Question 2
2.
I need to earn around 80% of the points on the FRQs to qualify on the exam.
Question 3
3.
I am allowed to talk during the free-response writing portion of this activity.
Question 4
4.
I am graded for accuracy for the free-response writing portion of this activity.
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Question 5
5.
Complete your responses here.
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Question 7
7.
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Researchers interested in sustainability developed three new varieties of genetically modified green beans designed to produce higher yields in arid regions. Four plots (A-D) were set up on a floodplain of a river to grow beans. Plots A, B, and C were each planted with seeds of different types of genetically modified strains of green beans. Plot D was planted with seeds of unmodified green beans. Each plot was given equal amounts of fertilizer, which contains phosphorus and nitrogen, and water and was irrigated using spray irrigation for one hour per day. Throughout the growing season, researchers measured the amount of green beans harvested within each plot. The plots with genetically modified beans had higher crop yields than the plot with unmodified beans.
(a) Identify the control group in this experiment.
(b) Identify the scientific question for the investigation.
(c) Researchers repeated the experiment by modifying the length of time for the spray irrigation to 20 minutes per day. Explain how the results of the experiment could be altered with this modification.
Researchers also monitored the amount of sediment and fertilizer washing into the river from each plot in the original study. The soil temperature was also measured in each plot at the same depth and at the same time each day approximately 0.05 meters below the surface of the soil.
(d) Based on the data in the table, identify the plot with the lowest soil temperature.
(e) Describe how sediment runoff and fertilizer runoff compare between the unmodified green beans and the genetically modified green beans.
(f) The Type 2 GMO beans in Plot B were developed to grow more quickly than the unmodified beans in Plot D. Researchers have hypothesized that the Type 2 beans would use fertilizer more completely than the other varieties. Based on the data in the table and the experimental design, explain whether the researchers' hypothesis was supported or refuted.
Once the experiment was concluded, the researchers burned the plots to remove the crops that had been planted. After a few years, the researchers returned to the plots and observed a variety of plants, insects, and bird species living there.
(g) Describe the ecological process that occurred on the plots after the crops were burned.
A survey indicated that one of the plots had twice the plant diversity that the other plots had. Over the next five years, the river occasionally flooded the plots, killing off many of the species that inhabited the plots.
(h) After each flooding event, the plot with twice the plant diversity returned to its prior level of biodiversity more quickly than the other plots did. Explain why a community with more plant diversity will recover more quickly from the flooding.
(i) After the last flooding event, a beetle not previously known in the area appeared in one of the plots with less plant diversity. Over a period of a few months, the new beetle population increased, whereas the existing beetle species in the plot had declining populations. Explain why the new beetle species could be better able to successfully populate this plot than the existing beetle species could.
(j) Describe one realistic method to prevent the new beetle from spreading beyond the experimental plot.
Question 6
6.
I am ready to move on to independent point/no point.
Completely ready; I am wasting my time here
Maybe: I could revise or complete more
Not ready at all, please give me more time
Researchers interested in sustainability developed three new varieties of genetically modified green beans designed to produce higher yields in arid regions. Four plots (A-D) were set up on a floodplain of a river to grow beans. Plots A, B, and C were each planted with seeds of different types of genetically modified strains of green beans. Plot D was planted with seeds of unmodified green beans. Each plot was given equal amounts of fertilizer, which contains phosphorus and nitrogen, and water and was irrigated using spray irrigation for one hour per day. Throughout the growing season, researchers measured the amount of green beans harvested within each plot. The plots with genetically modified beans had higher crop yields than the plot with unmodified beans.
(a) Identify the control group in this experiment.
(b) Identify the scientific question for the investigation.
(c) Researchers repeated the experiment by modifying the length of time for the spray irrigation to 20 minutes per day. Explain how the results of the experiment could be altered with this modification.
Researchers also monitored the amount of sediment and fertilizer washing into the river from each plot in the original study. The soil temperature was also measured in each plot at the same depth and at the same time each day approximately 0.05 meters below the surface of the soil.
(d) Based on the data in the table, identify the plot with the lowest soil temperature.
(e) Describe how sediment runoff and fertilizer runoff compare between the unmodified green beans and the genetically modified green beans.
(f) The Type 2 GMO beans in Plot B were developed to grow more quickly than the unmodified beans in Plot D. Researchers have hypothesized that the Type 2 beans would use fertilizer more completely than the other varieties. Based on the data in the table and the experimental design, explain whether the researchers' hypothesis was supported or refuted.
Once the experiment was concluded, the researchers burned the plots to remove the crops that had been planted. After a few years, the researchers returned to the plots and observed a variety of plants, insects, and bird species living there.
(g) Describe the ecological process that occurred on the plots after the crops were burned.
A survey indicated that one of the plots had twice the plant diversity that the other plots had. Over the next five years, the river occasionally flooded the plots, killing off many of the species that inhabited the plots.
(h) After each flooding event, the plot with twice the plant diversity returned to its prior level of biodiversity more quickly than the other plots did. Explain why a community with more plant diversity will recover more quickly from the flooding.
(i) After the last flooding event, a beetle not previously known in the area appeared in one of the plots with less plant diversity. Over a period of a few months, the new beetle population increased, whereas the existing beetle species in the plot had declining populations. Explain why the new beetle species could be better able to successfully populate this plot than the existing beetle species could.
(j) Describe one realistic method to prevent the new beetle from spreading beyond the experimental plot.
Question 8
8.
For notes on your answers/reflections as you go, if you would like to do so:
Question 9
9.
(a). Identify the control group in this experiment.
Question 10
10.
(b) Identify the scientific question for the investigation.
View the hint only after you have done your identifications.
Question 11
11.
(c) Researchers repeated the experiment modifying the length of time for the spray irrigation to 20 minutes per day. Explain how the results of the experiment could be altered with this modification.
Question 12
12.
(d) Based on the data in the table, identify the plot with the lowest soil temperature.
Question 13
13.
(e) Describe how sediment runoff and fertilizer runoff compare between the unmodified green beans and the genetically modified green beans.
Question 14
14.
(f) The Type 2 GMO beans in Plot B were developed to grow more quickly than the unmodified beans in Plot D. Researchers have hypothesized that the Type 2 beans would use fertilizer more completely than the other varieties. Based on the data in the table and the experimental design, explain whether the researchers’ hypothesis was supported or refuted.
Question 15
15.
Question 16
16.
(h) After each flooding event, the plot with twice the plant diversity returned to its prior level of biodiversity more quickly than the other plots did. Explain why a community with more plant diversity will recover more quickly from the flooding.
Question 17
17.
(i) After the last flooding event, a beetle not previously known in the area appeared in one of the plots with less plant diversity. Over a period of a few months, the new beetle population increased, whereas the existing beetle species in the plot had declining populations. Explain why the new beetle species could be better able to successfully populate this plot than the existing beetle species could.
Question 18
18.
(j) Describe one realistic method to prevent the new beetle from spreading beyond the experimental plot.
I think I earned the point for
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Do genetically modified green beans yield a higher amount of beans than unmodified beans in arid regions?
The crops would receive less water, which would help beans that can survive on little water thrive, while the other types wither, changing the results of the experiment,
The sediment runoff and the fertilizer runoff compares to the green beans because it effects the way they grow. The unmodified beans had a higher effect from sediment runoff than the GMO beans.
The researcher’s hypothesis is supported because the levels of fertilizer runoff were lowest in plot 2, which is seen by the relatively small amount of nitrogen and phosphorus runoff, in comparison with the other varieties.
(g) Describe the ecological process that occurred on the plots after the crops were burned.
Secondary succession.
After the crops were burned, their nutrients leached back into the soil as they decayed, which opened up the plot to pioneer species, which began growing. This was the first step in the succession process, and as the habitat was restored and covered by vegetation, this makes the habitat available for animal species to survive there.
The ecological process that occurred is called secondary succession. This is when plants regrow or recolonize an area after a disturbance in which soil and plants were already established.
Primary succession.
The ecological process that occurred when burning the crop cause those nutrients to go back into the dirt giving the dirt a new life and materials to be renewed.
Primary succession occurred because of the burning, which led to initial removal of the plants, but led to an increase in biodiversity after the regrowth
A community with more plant diversity will recover more quickly from the flooding because the different plants have different roles helping in a flood.
The new beetle species could be a generalist species, so that its sources for food are increased, and it does not need to compete for a specific plant species or other food source. This would allow the new beetle type to have more available resources and populate the plot more than the original beetle species could.
One realistic method could be to fence off the beetles to keep them contained.