ACT reading practice test 24

DIRECTIONS: Each passage is followed by several questions. After reading a passage, choose the best answer to each question and fill in the corresponding oval on your answer document. You may refer to the passages as often as necessary.

NATURAL SCIENCE: This passage is adapted from the article "A Tree Frog Grows Up in Hawaii" by Ashley C. Tulliver (© 2005 by Ashley Tulliver).

1. Which of the following questions is NOT answered by this passage?

A. On an annual basis, how often do coqui frogs mate and produce offspring?
B. Which predators native to Puerto Rico are absent in the Hawaiian islands?
C. What behavorial factors influence the volume of the coqui's calls?
D. How could the coqui potentially disrupt the food chain on the islands it inhabits?

2. It is most reasonable to infer from the passage that the lack of amphibian life in Hawaii:

F. benefits coquis, which don't have to compete for food and space.
G. provides little opportunity for coquis to form symbiotic relationships.
H. forces coquis to build their own nests in order to mate and breed.
J. is a result of invasive species' attacks on the biodiversity of the islands.

3. Which of the following statements about the noise levels produced by the coqui is supported by the passage?

A. The coqui males have lower, guttural croaks than do females of the species.
B. Calls are louder when coquis are defending their territory than when they are mating.
C. The calls of coqui sound particularly loud because there are no gaps of silence.
D. Coqui are noisier at dawn and dusk than at other times of day.

4. The primary purpose of the third paragraph (lines 19-28) is to:

F. describe wet weather conditions in Hawaii necessary for the coqui to breed.
G. provide a physical description of the coqui's habitat in Hawaii compared to that in Puerto Rico.
H. explain the ecological and behavioral advantages that permit the coqui to thrive in Hawaii.
J. give an overview of the amphibian life cycle, from the tadpole to frog stage.

5. Compared to the language of the first paragraph, the language of the sixth paragraph (lines 58-66) is more:

A. opinionated.
B. scientific.
C. optimistic.
D. casual.

6. As it is used in line 53, the word extirpation most nearly means:

F. competition.
G. extinction.
H. overpopulation.
J. pursuit.

7. Which of the following ideas is presented in the passage as theory and not fact?

A. Coqui frogs cluster together in high concentrations, amplifying the sound they make.
B. Store-bought poisons, in permissible doses, are not strong enough to kill the frogs.
C. The exoskeleton of insects is a better defense against caffeine citrate than the skin of amphibians.
D. A decrease in Hawaii's insect population causes a decrease in bird populations.

8. The passage states that coquis often carry parasites called:

F. nematodes.
G. arthropods.
H. scorpions.
J. arachnids.

9. Which of the following statements best reflects the information provided in the passage about the relevance of the greenhouse frog to the discussion of the coqui?

A. The greenhouse frog lives primarily indoors, whereas the coqui lives primarily in island rain forests.
B. The greenhouse frog is less prominent than the coqui but can be equally damaging to the Hawaiian ecosystem.
C. The greenhouse frog does not pose as dangerous a threat to the Hawaiian ecosystem as the coqui does.
D. It is easier to locate and eliminate the coqui because the greenhouse frog does not produce loud mating calls.

10. The phrase "1,000 acres" (line 85) refers to which type of land in Hawaii?

F. Caribbean ecosystem
G. Bird sanctuary
H. Rain forest
J. Coqui habitat