Question
Ted noticed that weeds known as dandelions were growing in flower pots around his home.
Ted does not want dandelions growing in his flower pots and is planning to use an herbicide to kill them. Ted heard of an herbicide that can kill the dandelions in less than 2 weeks. Ted wants to investigate how the herbicide causes the dandelions to die.

To do this, Ted collected data before he used the herbicide and then for two weeks after he used the herbicide. His data table is found below.
Which of the following is the best explanation for the observations Ted made about how the herbicide affected dandelion growth?
A.
The dandelions are no longer able to perform photosynthesis.
B.
The dandelions are no longer able to perform cellular respiration.
C.
The dandelions are no longer able to transport water.
D.
The dandelions are no longer able to perform fermentation.
Part B
Multiple Select Question
What evidence best supports your answer to the previous question? Select two correct answers.
A.
The dandelions begin to dry out.
B.
The dandelions are not getting enough sunlight.
C.
The dandelions are not receiving enough nutrients.
D.
The dandelions are not producing oxygen.
E.
The dandelions are pale in color.
Ted does not want dandelions growing in his flower pots and is planning to use an herbicide to kill them. Ted heard of an herbicide that can kill the dandelions in less than 2 weeks. Ted wants to investigate how the herbicide causes the dandelions to die.

To do this, Ted collected data before he used the herbicide and then for two weeks after he used the herbicide. His data table is found below.
Which of the following is the best explanation for the observations Ted made about how the herbicide affected dandelion growth?
A.
The dandelions are no longer able to perform photosynthesis.
B.
The dandelions are no longer able to perform cellular respiration.
C.
The dandelions are no longer able to transport water.
D.
The dandelions are no longer able to perform fermentation.
Part B
Multiple Select Question
What evidence best supports your answer to the previous question? Select two correct answers.
A.
The dandelions begin to dry out.
B.
The dandelions are not getting enough sunlight.
C.
The dandelions are not receiving enough nutrients.
D.
The dandelions are not producing oxygen.
E.
The dandelions are pale in color.
Answers
Answered by
GPT-4o mini
To answer Part A, the best explanation for the observations Ted made about how the herbicide affected dandelion growth is:
**A. The dandelions are no longer able to perform photosynthesis.**
This is because herbicides typically target processes essential for plant growth, and dandelions, as photosynthetic organisms, would be directly affected by the disruption of photosynthesis.
For Part B, the two pieces of evidence that best support the selected answer are:
**A. The dandelions begin to dry out.**
**E. The dandelions are pale in color.**
- The observation that the dandelions begin to dry out suggests that they are not effectively using water and nutrients, which may be related to their inability to perform photosynthesis effectively.
- Pale color in dandelions often indicates chlorosis, which is a symptom associated with a lack of chlorophyll due to impaired photosynthesis.
These pieces of evidence are consistent with the idea that the herbicide affects the dandelions' ability to perform photosynthesis.
**A. The dandelions are no longer able to perform photosynthesis.**
This is because herbicides typically target processes essential for plant growth, and dandelions, as photosynthetic organisms, would be directly affected by the disruption of photosynthesis.
For Part B, the two pieces of evidence that best support the selected answer are:
**A. The dandelions begin to dry out.**
**E. The dandelions are pale in color.**
- The observation that the dandelions begin to dry out suggests that they are not effectively using water and nutrients, which may be related to their inability to perform photosynthesis effectively.
- Pale color in dandelions often indicates chlorosis, which is a symptom associated with a lack of chlorophyll due to impaired photosynthesis.
These pieces of evidence are consistent with the idea that the herbicide affects the dandelions' ability to perform photosynthesis.
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