The practice that best qualifies as a pseudoscience from the provided options is using the smells of different oils to help a person feel energized. This practice resembles aromatherapy, which lacks scientific backing and rigorous experimentation to support its claims. While other practices may involve scientific principles, the reliance on essential oils for energy enhancement falls into the realm of subjective experience and anecdotal evidence rather than empirical data.
Which of these practices best qualifies as a pseudoscience?(1 point)
Responses
using varying degrees of sunlight to limit how large different plants grow
using varying degrees of sunlight to limit how large different plants grow
comparing different brushing techniques to prevent tooth decay
comparing different brushing techniques to prevent tooth decay
using the smells of different oils to help a person feel energized
using the smells of different oils to help a person feel energized
developing ways to use star patterns to travel at night
11 answers
Which question is impossible to test through observation?(1 point)
Responses
Which type of flower in a field stays in bloom the longest?
Which type of flower in a field stays in bloom the longest?
Which bird species migrates in winter?
Which bird species migrates in winter?
Which foods did dinosaurs compete for?
Which foods did dinosaurs compete for?
What is the average amount of acorns squirrels living in a park collect in fall?
Responses
Which type of flower in a field stays in bloom the longest?
Which type of flower in a field stays in bloom the longest?
Which bird species migrates in winter?
Which bird species migrates in winter?
Which foods did dinosaurs compete for?
Which foods did dinosaurs compete for?
What is the average amount of acorns squirrels living in a park collect in fall?
The question that is impossible to test through observation is "Which foods did dinosaurs compete for?" This question pertains to a historical context where direct observation is not possible, as dinosaurs are extinct and their behaviors cannot be directly studied. The other questions can be tested through direct observation or data collection.
What is the most reliable, accurate method for inferring phylogenetic relationships?(1 point)
Responses
tested hypotheses
tested hypotheses
genetic sequencing
genetic sequencing
fossil evidence
fossil evidence
direct observations
Responses
tested hypotheses
tested hypotheses
genetic sequencing
genetic sequencing
fossil evidence
fossil evidence
direct observations
The most reliable, accurate method for inferring phylogenetic relationships is genetic sequencing. Genetic sequencing allows scientists to analyze the DNA of organisms, providing detailed information about their genetic similarities and differences, which can yield more precise insights into their evolutionary relationships. While tested hypotheses, fossil evidence, and direct observations are also important in understanding phylogenetics, genetic data often provide the most objective and quantifiable basis for constructing phylogenetic trees.
DDT was a pesticide used to control mosquito populations. Mosquitoes breed in water. Because of its widespread use, DDT washed into waterways and was absorbed by fish and aquatic plants. Bald eagles ate those fish and died in large numbers, becoming endangered. In 1972, DDT was banned from use, and the bald eagle population recovered.
Which of these statements is an inference?
(1 point)
Responses
DDT caused bald eagle deaths.
DDT caused bald eagle deaths.
Mosquitoes carry pesticides to breeding sites.
Mosquitoes carry pesticides to breeding sites.
Bald eagles were dying at high rates.
Bald eagles were dying at high rates.
DDT needs to be banned from use.
DDT needs to be banned from use.
Remaining Attempts : 3
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Which of these statements is an inference?
(1 point)
Responses
DDT caused bald eagle deaths.
DDT caused bald eagle deaths.
Mosquitoes carry pesticides to breeding sites.
Mosquitoes carry pesticides to breeding sites.
Bald eagles were dying at high rates.
Bald eagles were dying at high rates.
DDT needs to be banned from use.
DDT needs to be banned from use.
Remaining Attempts : 3
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The statement that qualifies as an inference is "DDT caused bald eagle deaths." This inference suggests a causal relationship between the use of DDT and the decline in the bald eagle population. It goes beyond mere observation and implies a conclusion based on the evidence provided in the scenario.
The other statements are observations or opinions rather than inferences about causation.
Which action would most reveal the creativity used by scientists developing a method to prevent beach erosion?(1 point)
Responses
locating the different beaches the scientists may have visited to learn more about beach erosion
locating the different beaches the scientists may have visited to learn more about beach erosion
learning about the experimental systems scientists set up to test their questions about beach erosion
learning about the experimental systems scientists set up to test their questions about beach erosion
looking at the research studies the scientists used to learn about beach erosion
looking at the research studies the scientists used to learn about beach erosion
understanding that the scientists compared beach erosion to other types of erosion
Responses
locating the different beaches the scientists may have visited to learn more about beach erosion
locating the different beaches the scientists may have visited to learn more about beach erosion
learning about the experimental systems scientists set up to test their questions about beach erosion
learning about the experimental systems scientists set up to test their questions about beach erosion
looking at the research studies the scientists used to learn about beach erosion
looking at the research studies the scientists used to learn about beach erosion
understanding that the scientists compared beach erosion to other types of erosion
The action that would most reveal the creativity used by scientists developing a method to prevent beach erosion is "learning about the experimental systems scientists set up to test their questions about beach erosion."
This choice indicates an exploration of the innovative approaches and experimental designs that scientists employed, showcasing their creativity in developing practical solutions and methodologies to address the problem of beach erosion.
How did evidence evidence found by scientists in1977 while conducting genetic research show they scientific knowledge is open to change?(1 point)
Responses
They proved that genes are a crucial component to DNA.
They proved that genes are a crucial component to DNA.
They discovered that polypeptides fold into three-dimensional structures.
They discovered that polypeptides fold into three-dimensional structures.
They discovered that one gene provides the code for one protein at a time.
They discovered that one gene provides the code for one protein at a time.
They demonstrated how mRNA strand will attach itself to a ribosome.
Responses
They proved that genes are a crucial component to DNA.
They proved that genes are a crucial component to DNA.
They discovered that polypeptides fold into three-dimensional structures.
They discovered that polypeptides fold into three-dimensional structures.
They discovered that one gene provides the code for one protein at a time.
They discovered that one gene provides the code for one protein at a time.
They demonstrated how mRNA strand will attach itself to a ribosome.
The evidence found by scientists in 1977 while conducting genetic research that shows scientific knowledge is open to change is represented by the statement "They discovered that one gene provides the code for one protein at a time."
This finding contributed to the understanding of the gene-protein relationship and helped refine the central dogma of molecular biology (DNA → RNA → Protein). It illustrates how new discoveries can lead to changes in established scientific concepts, emphasizing the evolving nature of scientific knowledge.