7. The word “concealed” in line 17 is closest in meaning to (A) highlighted (B) covered (C) transformed (D) contaminated

8.Why does the author mention animals such as coyotes and wolves in paragraph 4? (A) To give examples of animals that are classified as carnivores (B) To specify the animals found least commonly at La Brea (C) To argue that these animals were especially likely to avoid extinction. (D) To define the term “scavengers”