The following excerpt is taken from a student’s research paper.Hammerhead sharks are certainly one of the strangest-looking creatures in the sea. However, the unique shape of their heads may have something to do with their having one of the largest brains of all species of sharks (Yopak et al., 2007).The phrase “et al.” means

The following questions are designed to test your knowledge of basic research, reference, and composition skills. These questions are self-contained. Read all of the answer choices before choosing the best answer for each question.