Question

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
a theory changing because a new scientific method was developed.
a law changing because a new scientific method was developed.
a hypothesis changing because a new scientific method was developed.
an observation changing because a new scientific method was developed.

Explanation:

1. First, recall the definitions: A theory is a well - supported explanation of a natural phenomenon. A law describes a natural phenomenon. A hypothesis is a tentative explanation. An observation is what is seen.
2. Before Mendel, the idea about trait inheritance was a kind of theoretical understanding (the idea that organisms acquired traits from the environment and passed them on). After Mendel used statistics (a new scientific method) to analyze data, the theory of trait inheritance changed to the idea that genes are passed from parents to offspring.
3. A law is a descriptive statement (like the law of gravity describes how objects fall), not something that changes in this way. A hypothesis is tentative, and this was a more established idea before Mendel. An observation is about what is seen, not a conceptual idea about inheritance. So the correct option is about a theory changing because a new scientific method was developed.

Answer:

A. a theory changing because a new scientific method was developed.