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Southeast Asian rain forest, as do the unmistakable calls of the gibbons. In
densely wooded environments, sound is the best means of communication over distance because in comparison with light, it travels with little impediment from trees and other vegetation. In forests, visual signals can be seen only at short distances, where they are not obstructed by trees. The male riflebird exploits12 both of these modes of signaling simultaneously in his courtship display. The sounds made as each wing is opened carry extremely well over distance and advertise his presence widely. The ritualized visual display communicates in close quarters when a female has approached. D.resistance
12. The word exploits in the passage is closest in meaning to A. repeats B. makes use of
C. increases the intensity of D. recognizes
Less colorful birds and animals that inhabit the rain forest tend to visual, particularly over long distances. (The piercing cries of the rely on other forms of signaling other than the rhinoceros hornbill characterize the Southeast
Asian rain forest, as do the unmistakable calls of the gibbons.( In densely wooded environments, sound is the best means of communication over distance because in comparison with light, it travels with little impediment from trees and other vegetation.( In forests, visual signals can be seen only at short distances, where they are
not obstructed by trees. (The male riflebird exploits12 both of these modes of signaling simultaneously in his
courtship display. The sounds made as each wing is opened carry extremely well over distance and advertise his presence widely. The ritualized visual display communicates in close quarters when a female has approached.
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13. Look at the four squares| that indicate where the following sentence
could be added to the passage. Where would the sentence best fit?
There is also the long, rather terrifying call of the male orangutan, which carries over considerable distances to advertise his presence.
14. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points. In the rain forest, an animal must be able to send signals to members of its own species and at the same time avoid being detected by predators Answer Choices
A. Animals that have different predators at different times of day change color to avoid being detected.
B. To be noticed, an animal may draw attention to the contrast between its colors and the colors of its environment.
C. Yellow and green are the most common colors found in the rain forest. D. To escape notice, an animal may move or change color so that its color pattern is not visible.
E. Animals must have signals for aggression as well as to indicate readiness to mate.
F. An animal may use sound rather than color to attract attention, because sound signals are not hindered by light conditions.