5 points
Instructions for Student
Reread paragraph 30 of the text. Then answer the multiple-choice questions that follow.
From "Restless Genes" by David Dobbs
0000
30 But a migratory wave can also allow genes friendly to migration to drive their own selection. A notable, if noxious, example is the South American cane toad.
Introduced to northeastern Australia in the 1930s, it now numbers more than 200 million and is advancing across the continent at 30 miles a year. The leading toads
hop on legs that are 10 percent longer than those of their 1930s ancestors-and measurably longer than the legs of toads even a mile behind them. How so? Toads
that are both restless and long legged move to the front, bringing any restless, long-legged genes with them. There they meet and mate with other restless, long-
legged toads to create restless, leggy offspring that move to the front and repeat the cycle.
Which text structure does the author use in this paragraph?
description of the characteristics of the South American cane toad
sequence of events that led to the migration of the South American cane toad
compare and contrast to show the differences and similarities in two breeds of toads
problem-solution to examine the possible solution to the problem of the noxious South American cane toad
4