What alerts the reader when something in the plot is happening

Which textbook section would you use to identify the books and articles the author used or referred to in writing the book? introduction bibliography index table of contents

Which statement contains an opinion? the ants serve to protect the acacia from other plants and herbivores. the acacia depends on pollinators for the exchange of genetic material. the acacia has no chemical defenses to discourage herbivores. the ants provide the acacia with the best protection from other plants and herbivores.

Whiat is the best example of a story's historical content?