what role do the spiracles play in the respiration of the insects mentioned in the passage

ATI TEAS 7

TEAS Reading Practice Test

1. What role do the spiracles play in the respiration of the insects described in the passage?

A. They allow insects to breathe atmospheric air even when submerged.
B. They protect the insect's internal organs from water pressure.
C. They filter oxygen from the water for underwater breathing.
D. They are used to expel carbon dioxide from the body.

Correct answer: A

Rationale: The spiracles in insects serve the crucial function of allowing them to breathe atmospheric air even when submerged. The passage explains that insects have a system of branching air-tubes that carry atmospheric air with oxygen to all tissues. The air enters these tubes through paired air-holes or spiracles, enabling insects to respire even when they are underwater. Choices B, C, and D are incorrect because the spiracles do not protect internal organs from water pressure, filter oxygen from water for underwater breathing, or expel carbon dioxide from the body. The primary role of spiracles is to facilitate respiration by allowing insects to access atmospheric air.

2. Why did Julia not return to work after the alarm?

A. She was embarrassed that she could not finish the work her boss asked for.
B. She was tired and wanted to go home.
C. She got stuck in traffic and could not get back to her office.
D. Her boss gave her the afternoon off.

Correct answer: C

Rationale: The most likely reason Julia did not return to work after the alarm is that she got stuck in traffic and could not get back to her office. The extract provides details about Julia's challenging morning, starting from being woken up early by lawn mowers, having a caffeine-free cup of coffee, facing traffic delays, arriving late at work, and receiving additional work from her boss. These events culminated in Julia deciding to leave after the fire alarm, indicating that being stuck in traffic was the primary reason for her absence. Choices A, B, and D are incorrect because there is no direct evidence in the provided extract to support them. Julia's actions suggest that her decision to leave was more related to external factors like traffic issues rather than internal feelings of embarrassment, tiredness, or being given time off by her boss.

3. What was the author's purpose in writing this passage about George Washington?

A. To inform readers about Washington's advice and its relevance to modern times.
B. To introduce George Washington as a historical figure.
C. To emphasize that George Washington had a multifaceted role beyond being a military hero.
D. To persuade readers that George Washington is a hero of liberty.

Correct answer: A

Rationale: The correct answer is A: 'To inform readers about Washington's advice and its relevance to modern times.' The passage focuses on Washington's advice, leadership, and legacy, particularly his farewell address, highlighting its significance in current times. This choice accurately reflects the primary purpose of the passage. Choice B is incorrect because the passage goes beyond mere introduction, delving into Washington's actions and beliefs. Choice C is incorrect as while the passage does mention Washington's multifaceted role, the primary focus is on his advice and legacy. Choice D is incorrect because the passage does not aim to persuade readers of Washington's heroism but rather inform them about his advice and principles.

4. According to the food chain diagram, which of the following animals has no natural predators?

A. Vulture
B. Cobra
C. Mongoose
D. Aardvark

Correct answer: B

Rationale: The correct answer is B, Cobra. In the food chain diagram, cobras are often considered apex predators, meaning they are at the top of the food chain and do not have natural predators. Vultures (choice A), although scavengers, may face competition but not direct predators. Mongooses (choice C) are known for preying on snakes, including cobras, and aardvarks (choice D) are part of the food chain and have predators like lions and hyenas.

5. What word best describes the organization of this passage?

A. Modeling
B. Hypothesizing
C. Explaining
D. Observing

Correct answer: C

Rationale: The correct answer is 'Explaining.' The passage is structured in an explanatory manner, providing a detailed account of how a plunger works. It explains the process step by step, from the initial depression of the plunger to the increase in pressure inside the clogged pipe. 'Modeling' and 'Observing' are not suitable choices as the passage does not involve creating models or direct observations. 'Hypothesizing' is also incorrect as the passage focuses on describing the functioning of a plunger rather than proposing or discussing potential hypotheses.