How should you test a hypothesis?
Gregor Mendel demonstrated that traits are passed from parents to offspring independently of one another under all circumstances that he tested. All other genetics researchers have observed this as well. Based on this information, the statement can be made that “traits are passed from parents to offspring independently of one another.” Which describes the statement of fact?
The statement “force equals mass times acceleration (F=ma)” is Newton’s second law of motion. Why is this a law rather than a theory?
The development of a new experimental method is most likely to change a theory if it makes it possible to
Which occurs directly before forming a hypothesis?
Which situation would result in a theory being replaced rather than revised?
How does a law differ from a theory?
Conlan wants to answer the question, “Does phosphorus affect tomato fruit production?” Which statement represents a hypothesis that he can test to answer his question?
In the early days of germ theory, contagious diseases were thought to be caused only by fungi or bacteria. In the 1890s, Dmitri Ivanovski filtered extracts from diseased tobacco plants and discovered that the disease could be transmitted to new plants through the filtrate. He hypothesized that something smaller than bacteria or fungi was responsible for the transmission of the disease. Which best explains how Ivanovski’s work led to a change in the germ theory?
Our current understanding of evolution is called a theory because it has been
In which situation would new technology be most likely to cause a change in an existing theory about new structures in a cell?
Which is the correct order in the scientific process?
To be a possible answer to a scientific question, a hypothesis must be
A testable hypothesis could be formed from which question?
What do hypotheses, theories, and laws have in common?
Gregor Mendel was the first scientist to use statistics to analyze scientific data. Before Mendel’s experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. After Mendel’s discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. This is an example of
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