what does macmillans invention of the bicycle signify

HESI A2

HESI A2 Reading Comprehension Practice Test

1. What does Macmillan's invention of the bicycle signify?

A. He made important changes in bicycle design.
B. He invented the first bicycle with pedals.
C. He developed the modern chain drive.
D. He improved the safety of bicycles.

Correct answer: B

Rationale: Macmillan's invention of pedals was a significant milestone in bicycle history as it allowed for quicker and more efficient travel. The provided extract mentions that Macmillan's bicycle had foot-operated cranks like pedals, which enabled the rider to travel at a quick pace. This innovation marked a crucial development in the evolution of bicycles. While choices A, C, and D are related to advancements in bicycle design and safety, the key significance of Macmillan's invention lies in introducing pedals to bicycles, making choice B the correct answer.

2. What is the main idea of the passage about The Sleep Workout?

A. Insufficient sleep can lead to obesity.
B. Insufficient sleep inhibits the natural release of human growth hormone in the human body.
C. Getting the proper amount of uninterrupted sleep plays a major role in the development of muscle.
D. Developing muscle growth is an effective way to stay healthy as we get older.

Correct answer: C

Rationale: The main idea of the passage is that getting the proper amount of uninterrupted sleep plays a major role in the development of muscle. The passage emphasizes how muscle growth occurs during rest periods following a workout, with sleep being a critical time for muscle fiber rebuilding. The connection between sleep, human growth hormone (HGH) release, and muscle development is highlighted. Choice A is incorrect because while the passage mentions the link between inadequate sleep and obesity due to altered appetite hormones, the main focus is on muscle development. Choice B is incorrect because although the passage discusses HGH release during deep sleep, the primary emphasis is on the role of uninterrupted sleep in muscle development. Choice D is incorrect because while the passage acknowledges that developing muscle growth is essential for health as we age, the key point is the significance of uninterrupted sleep in the muscle development process.

3. What can the reader conclude from this passage about ponds and lakes?

A. They are examples of groundwater reservoirs.
B. They are part of the evaporation process.
C. They are formed by runoff.
D. They are formed by condensation.

Correct answer: A

Rationale: The correct answer is A: 'They are examples of groundwater reservoirs.' The passage mentions that runoff collects in groundwater reservoirs, among other places. Ponds and lakes are typically reservoirs of groundwater, as stated in the passage. Choice B is incorrect because ponds and lakes are not directly mentioned as part of the evaporation process. Choice C is incorrect as ponds and lakes are not stated to be formed by runoff. Choice D is incorrect as ponds and lakes are not formed by condensation.

4. What is the main idea of the passage about Toxins and Your Health?

A. Environmental toxins may have dire health effects over time.
B. Of three toxins studied, lead has the worst effect on health.
C. Toxins may accumulate in the bones of older patients.
D. Johns Hopkins University has discovered a new use for lead.

Correct answer: A

Rationale: The passage emphasizes the long-term effects of environmental toxins such as lead, pesticides, and mercury on brain health, particularly as individuals age. Dr. Brian Schwartz's quote highlights the link between environmental exposure and cognitive decline, framing the entire discussion around the potential health ramifications of such exposure over time. This clearly aligns with choice A, making it the main idea of the passage.