<span>The Jungle and the Progressive Era. The publication of Upton Sinclair's 1906 novel The Jungle produced an immediate and powerful effect on Americans and on federal policy, but Sinclair had hoped to achieve a very different result.</span>
Answer:
Algernon bites Charlie. Algernon is less cooperative, refuses to run the maze, decreased motivation, has to be fed. Why do the changes in Algernon worry Charlie? It means that things aren't looking to good for him, that he will lose his intelligence, and maybe much more.
Explanation:
Hope I <em><u>Helped!</u></em> :D