Question

the following statement is an example of a(n) ______: \zebra mussels were accidentally introduced to the waters of the great lakes.\

○ observation

○ hypothesis

○ conclusion

○ theory

Explanation:

The statement describes a specific event (zebra mussels' accidental introduction to the Great Lakes) that is a factual account of something that occurred, which aligns with the definition of an observation—information about phenomena gathered through evidence or documentation. A hypothesis is a testable prediction, a conclusion is a result from analysis, and a theory is a well-supported explanation, none of which fit this statement.

Answer:

observation