Question

select whether each example of scientific communication represents a primary source or a secondary source. a scientist is interviewed on a television program about an important discovery he made in cancer research. an article in the journal nature presents the original research results of a recent experiment by a group of biochemists. an article in a small, specialized journal presents the results of a graduate students experiment. a book summarizes important recent research on marine mammals. an issue of a popular science magazine reports on some recent findings in brain research.

Explanation:

• A primary source presents original research or data. An article presenting a graduate student's experiment results is primary as it's the original work. An article in Nature with original biochemists' experiment results is also primary.
• A secondary source summarizes or interprets primary sources. A scientist's interview (as it's a mediated presentation of their work, not the raw data) is secondary. A book summarizing research and a magazine reporting findings (which are interpretations/summaries of original research) are secondary.

Answer:

• An article in a small, specialized journal presents the results of a graduate student’s experiment: Primary source.
• A scientist is interviewed on a television program about an important discovery he made in cancer research: Secondary source.
• A book summarizes important recent research on marine mammals: Secondary source.
• An article in the journal Nature presents the original research results of a recent experiment by a group of biochemists: Primary source.
• An issue of a popular science magazine reports on some recent findings in brain research: Secondary source.