the involuntary rhythmic contractions of the heart muscle are controlled by a specialized group of cells located in the

ATI TEAS 7

Mometrix TEAS 7 science practice test

1. What controls the involuntary, rhythmic contractions of the heart muscle?

A. Lungs
B. Brain
C. Spinal cord
D. Sinoatrial node (located within the heart)

Correct answer: D

Rationale: The correct answer is D: Sinoatrial node (located within the heart). The involuntary, rhythmic contractions of the heart muscle are controlled by a specialized group of cells located within the heart called the sinoatrial node (SA node). The SA node acts as the heart's natural pacemaker, producing electrical impulses that regulate the heart rate and synchronize the contractions of the heart muscle. Choices A, B, and C (Lungs, Brain, Spinal cord) are not responsible for directly influencing the rhythmic contractions of the heart muscle.

2. What is the author’s conclusion about the house on Pine Street?

A. The house did not have enough bedrooms.
B. The house did not have a big enough yard.
C. The house was not in the right neighborhood.
D. The house was too expensive.

Correct answer: D

Rationale: The author's conclusion about the house on Pine Street is that it was too expensive. This can be inferred from the description provided in the text, where it is mentioned that although the house had enough space inside, it didn't have a big enough yard for their dogs, and the cost of the house was well above their price range. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not align with the evidence from the text, which clearly points to the cost being the main issue with the house on Pine Street.

3. What is the purpose of the use of repetition in the following passage? It was a night of little ease to his toiling mind, toiling in mere darkness and besieged by questions.

A. It serves as a demonstration of Mr. Lanyon's mental state.
B. It highlights the church bells mentioned in the story.
C. It reflects Mr. Utterson's ambivalence.
D. It emphasizes Mr. Utterson's anguish in failing to identify Hyde's whereabouts.

Correct answer: D

Rationale: The repetition in the passage emphasizes Mr. Utterson's mental struggle and persistence as he grapples with his thoughts and questions. It conveys the intensity of his anguish and frustration in trying to identify Hyde's whereabouts, rather than reflecting Mr. Lanyon's or Mr. Utterson's ambivalence. The mention of church bells is not relevant to the passage, making choice B incorrect. Therefore, the correct answer is D, as the repetition underscores Mr. Utterson's emotional turmoil and his desperate search for answers.

4. What is the primary function of the large intestine?

A. absorbing digested material into the blood
B. nutrient processing and metabolizing
C. absorbing water and compacting material into solid waste
D. bile production and storage

Correct answer: C

Rationale: The large intestine's primary function is to absorb water from undigested food remnants and compact them into solid waste (feces). This process helps regulate hydration levels in the body and aids in waste elimination. Choices A, B, and D are incorrect. Absorbing digested material into the blood is mainly done in the small intestine, nutrient processing and metabolizing occur in various parts of the digestive system, and bile production and storage are functions of the liver and gallbladder, not the large intestine.

5. Which of the following could be considered a theme of the passage?

A. Anyone can become royalty.
B. People should only marry for advantage.
C. Queen Victoria was a fair, but unlikely, queen.
D. Even the most unlikely events can happen.

Correct answer: D

Rationale: The theme of the passage revolves around the idea that even the most unlikely events can happen. The passage describes the improbable events leading to Queen Victoria becoming the queen, emphasizing how unpredictable and unexpected her rise to the throne was. Choice A is not supported as Victoria was born into royalty, so not just anyone can become royalty as implied. While there are mentions of marriages for advantage in the passage, it is not the central theme but rather a detail in the historical context, making choice B incorrect. Although the passage discusses Queen Victoria being an unlikely queen, this statement is too specific to be a theme; a theme should be broader and universally applicable, making choice C incorrect.