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 does the author repeat the phrase 'I had a dream' throughout the text?

A. To emphasize the speaker's excitement
B. To persuade the audience
C. To demonstrate the speaker's authority
D. To create a rhythmic effect

Correct answer: A

Rationale: The repetition of 'I had a dream' in the text serves to emphasize the speaker's excitement and vision. By repeating this phrase, the author highlights the importance and impact of the dream, reinforcing the central theme of hope and aspiration. Choices B, C, and D are incorrect because the primary purpose of the repetition is not persuasion, demonstration of authority, or creating a rhythmic effect, but rather to underscore the speaker's emotions and aspirations.

3. Based on the context of the passage, the reader can infer that this information is likely to appear in which of the following types of works?

A. a scholarly paper
B. a mystery
C. a fictional story
D. a biography

Correct answer: D

Rationale: The information provided in the passage about the skeleton's structure and divisions, along with specific details like the number of bones and their functions, is characteristic of content found in a biography or a reference work focusing on anatomy. Biographies often include detailed factual information about historical figures, their lives, and aspects related to them, such as physical characteristics. A scholarly paper would delve deeper into analysis and research, rather than presenting basic factual information. The content in the passage is purely informative and factual, ruling out the possibility of it being part of a mystery or fictional story, which require narrative and plot elements rather than straightforward facts.

4. What should be done after the soil has been loosened with a tiller or trowel?

A. Mix fertilizer or compost into loosened soil.
B. Dig a 4-inch-deep trench.
C. Cut potatoes into pieces.
D. Mound soil around the base of the plant.

Correct answer: A

Rationale: After the soil has been loosened with a tiller or trowel, the next step should be to mix fertilizer or compost into the loosened soil. This action is crucial as it provides essential nutrients for plant growth, improves soil fertility, and promotes healthy plant development. Digging a trench, cutting potatoes, or mounding soil around the base of the plant are not tasks typically performed immediately after loosening the soil. Therefore, option A is the correct choice as it aligns with the standard practice of enhancing soil quality before planting.

5. Why was Lamarr's invention not of interest to the US?

A. Hollywood was known to have spies
B. The navy preferred to use the work of military engineers
C. The military was too preoccupied to consider new inventions
D. They suspected her patent was invalid

Correct answer: B

Rationale: The correct answer is B. The US Navy preferred to utilize technology developed by military engineers rather than consider Lamarr's invention. Choice A is incorrect because Hollywood containing spies is not relevant to why the US was not interested in Lamarr's invention. Choice C is incorrect as there is no mention of the military being too preoccupied to consider new inventions in the provided context. Choice D is incorrect as there is no indication that the US suspected Lamarr's patent to be invalid; rather, the focus was on the navy's preference for technology developed by military engineers.