College

### Biology 1 End-of-Course Assessment Practice Test

#### For Multiple Choice Items, circle the correct response.

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**(1.02 MC) SC.912.N.1.1**

If a company claims that its product has been proven scientifically, which of the following should have taken place if the results are to be considered reliable?

A. The company should have held discussions with leading industry scientists.

B. Technology should have been used in both the gathering of data and data analysis.

C. Results should have been peer-reviewed and repeated, producing the same findings.

D. The results of the investigation should have been published in popular magazines.

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**(1.02 MC) SC.912.N.1.1**

Based on your knowledge of scientific investigations, which stage of scientific investigation did the invention of the microscope significantly advance?

A. Communicating the results of experimentation

B. Gathering the data for the investigation

C. Generating explanations of phenomena

D. Planning the investigation and experimentation

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**(1.02 HC) SC.912.N.1.1**

A student is conducting an investigation to determine the effect of temperature on the metabolism of yeast (Saccharomyces cerevisiae). Yeast and sugar are added to water, the gas produced is captured, and its volume is recorded. Which variables should be held constant during this investigation?

A. Mass of sugar and water temperature

B. Mass of yeast and mass of sugar

C. Volume of gas and water temperature

D. Volume of gas and mass of yeast

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**(1.02 MC) SC.912.L.14.1**

Scientific law and a scientific theory are similar in that both

A. are based on what we expect to happen based on natural history.

B. describe the events that can be observed in nature.

C. explain why events and conditions occur as they do in the natural world.

D. represent a large amount of scientific investigation and evidence.

Answer :

Final answer:

To ensure the reliability of scientific claims, results must be peer-reviewed and replicated. The microscope enhances data gathering in investigations. Maintaining constant variables is crucial during experiments, and both scientific laws and theories describe observable events in nature.


Explanation:

Understanding Scientific Claims

If a company claims that its product has been proven scientifically, it is critical that certain standards of scientific practice have been met for the results to be considered reliable. The most appropriate response is:

  1. C. Results should have been peer reviewed and repeated producing the same findings. This is essential in science because peer review helps to ensure that the research is valid and that the results can be replicated by other scientists, confirming their accuracy.

The Role of the Microscope in Scientific Investigation

The invention of the microscope significantly advanced the following stage of scientific investigation:

  1. B. Gathering the data for the investigation. Microscopes allow scientists to observe tiny organisms and cells that are otherwise invisible, providing crucial data and insights.

Controlling Variables in Experiments

When a student conducts an investigation on the effect of temperature on the metabolism of yeast, it is important to maintain certain constant variables. The correct choice is:

  1. B. Mass of yeast and mass of sugar. Keeping the mass of yeast and the amount of sugar constant ensures that any changes in gas production can be attributed solely to changes in temperature.

Scientific Law vs. Scientific Theory

Scientific laws and theories share similarities in that both:

  1. B. describe the events that can be observed in nature. While laws state what happens, theories explain why and how these events occur based on evidence.

Learn more about scientific methodologies and principles here:

https://brainly.com/question/14368636


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