which of the following is true of hypotheses of the form all x and y

ATI TEAS 7

Reading TEAS Practice Test

1. Which of the following is true of hypotheses of the form 'All x and y'?

A. Something that is neither x nor y disproves the hypothesis.
B. Something that is both x and y disproves the hypothesis.
C. Something that is x but not y disproves the hypothesis.
D. Something that is y but not x disproves the hypothesis.

Correct answer: C

Rationale: The correct answer is C. According to the passage, when encountering evidence that disproves a hypothesis of the form 'All x and y,' something that is x but not y can disprove the hypothesis. Using the example provided in the passage, a monkey (x) that has no hair (not y) would disprove the hypothesis 'All monkeys are hairy.' Choice A is incorrect because something that is neither x nor y is not specifically mentioned in the passage to disprove such hypotheses. Choice B is incorrect because the passage states that something that is both x and y confirms the hypothesis, not disproves it. Choice D is incorrect as the passage does not discuss something that is y but not x disproving the hypothesis; it focuses on x but not y as evidence to disprove the hypothesis.

2. What is the purpose of the passage?

A. to inform
B. to entertain
C. to describe
D. to persuade

Correct answer: A

Rationale: The main purpose of this passage is to inform readers about the role of skin coloration and markings in snakes. It explains how these markings help snakes hide from predators and how they can also indicate venomousness. The passage also provides examples such as the scarlet kingsnake to illustrate how some nonvenomous snakes mimic the appearance of venomous snakes for protection. This informative content aims to educate readers about the survival strategies of snakes, rather than entertain, describe, or persuade them.

3. In which chapter should Clothilde look for more information?

A. Chapter 7
B. Chapter 9
C. Chapter 10
D. Chapter 12

Correct answer: B

Rationale: Clothilde should look for more information in Chapter 9, 'Herbs for Immunity,' as her sister's daughter has a chronic cough. Immune-boosting herbs may help strengthen the child's immune system and potentially alleviate the cough. Chapter 9 focuses on herbs that support immune health, making it the most relevant chapter for addressing a chronic cough related to immunity. Chapters 7, 10, and 12 do not specifically focus on immunity or respiratory conditions, making them less likely to provide the information Clothilde needs.

4. What can one reasonably conclude from the final comment of this passage?

A. The speaker is considering a name change.
B. The speaker is experiencing an identity crisis.
C. The speaker has mistakenly been looking for the wrong person.
D. The speaker intends to continue to look for Hyde.

Correct answer: D

Rationale: The final comment in the passage indicates that Mr. Utterson intends to keep searching for Mr. Hyde, showing his determination. The passage describes how Mr. Utterson is troubled by questions about Hyde, engaging not just his intellect but also his imagination. Despite the lack of information obtained from Lanyon, Mr. Utterson continues to ponder the problem late into the night, suggesting his commitment to uncovering the mystery. Choices A, B, and C are incorrect because there is no indication in the passage that the speaker is considering a name change, experiencing an identity crisis, or mistakenly looking for the wrong person. The passage focuses on Mr. Utterson's persistent search for Hyde, emphasizing his unwavering resolve.

5. Why do cicadas make a buzzing sound?

A. To orient via echolocation
B. To attract a mate
C. To locate a food source
D. To ward off predators

Correct answer: B

Rationale: Cicadas make a buzzing sound primarily to attract a mate. This sound is a mating call produced by the males to attract females for reproduction. While echolocation is used by some animals like bats for navigation, cicadas do not use buzzing for orientation. Buzzing is not related to locating a food source or warding off predators in the case of cicadas.