19.The author discusses ducks in order to provide an example of birds that
(A) grow replacement feathers that are very long
(B) shed all their wing feathers at one time
(C) keep their innermost feathers
(D) shed their outermost feathers first

15.The word “optimal” in line 13 is closest in meaning to (A) slow (B) frequent (C) best (D) early

16.Which of the following is NOT mentioned as a reason that songbirds molt in the late summer? (A) Fewer predators are in the woods. (B) The weathers is still warm. (C) The songbirds have finished breeding. (D) Food is still available.

17. Some birds that are molting maintain balance during flight by (A) constantly preening and caring for their remaining feathers (B) dropping flight feathers on both sides at the same time (C) adjusting the angle of their flight to compensate for lost feathers (D) only losing one-third of their feathers

18.The word “Others” in line 21 refers to (A) ducks (B) sides (C) species (D) flight feathers

20. It can inferred from the discussion about ducks that the molting of their flight feathers takes. (A) a year (B) a season (C) several months (D) a few weeks

21.What does the passage mainly discuss? (A) African American paintings in the 1920’s (B) An arts movement of the 1920’s (C) The influence of Alain Locke on African American art (D) Some ways in which African culture inspired American literature, art and music

22. According to the passage, Tomas Eakins, Robert Henri, and George Luks were important because of (A) the philosophical contributions they made to the Harlem Renaissance (B) their development of a new style of African American art (C) they way in which they depicted African Americans in their paintings (D) their independence from European artistic traditions

23. The word “them” in line 11 refers to (A) Americans of European descent (B) paintings (C) African American artists (D) attitudes

24. According to the passage, African American artists of the 1920’s differed from earlier African American artists in terms of their feelings about (A) themselves (B) other artists (C) their impact on American art (D) stereotypes

25.The word “urged” in line 17 is closest in meaning to (A) prepared (B) defined (C) permitted (D) encouraged