The arctic curlew, a once common wading species in the tundra, has

All correct in 6 mins 40 seconds, including 3 mins to read.

1 The theory offered in the second paragraph differs most from Miller’s theory in regards to the

A type of sustenance that the curlew attempts to find
B reason the arctic curlew veers from its traditional flight path
C influence of oil tankers on the curlew’s ability to make navigational decisions
D the amount of area available to a migrating curlew
E extent to which its navigational course is affected by its environment

Miller --> since many of the areas in which it once fed no longer provide adequate sustenance, the bird has been forced to change migratory paths and must land in a foreign ecosystem where it is unable find adequate nutrition.

Theory offered in 2nd paragraph -
when a curlew ingests tainted fish, its ability to navigate for several hours afterwards is diminished and it will often veer from its traditional path. Where at one point such deviations would not have affected the bird’s ability to forage, climate change has resulted in a significant diminishment of areas capable of providing sufficient sustenance for the arctic curlew.

Answer B

2 According to the passage, an arctic curlew suffering navigational issues is most consistent with which of the following?

A Fagen’s theory
B Miller’s theory
C A theory with which the passage disagrees
D A decrease in hydrocarbons
E A decrease in areas providing adequate nutrition

Both theories, however, are somewhat correct but not in a way that either Fagen or Miller would have likely anticipated. The loss of navigational ability can be attributed to factor described in Fagen's theory(ingestion of hydrocarbon hampers navigation)

3. Which of the following is the primary purpose of the passage?

A To describe how elements of two theories are consistent with a third theory - Correct
B To highlight shortcomings in two theories and to support a third theory -- shortcomings are not highlighted
C To contrast two theories and show how together both are sufficient -- even together the two theories are not sufficient in the original way
D To discuss how a third theory is similar to two competing theories -- Incorrect
E To introduce three theories and describe notable flaws in each -- no flaw in third was stated

Both theories, however, are somewhat correct but not in a way that either Fagen or Miller would have likely anticipated. The first line of second paragraph states the essence.