what would be an appropriate control variable for this experiment
Logo

Nursing Elites

ATI TEAS 7

ATI TEAS 7 Science Practice Test

1. What would be an appropriate control variable for this experiment?

Correct answer: C

Rationale: The mass of the ball would be an appropriate control variable for this experiment. By keeping the mass constant, you can ensure that any observed effects are not due to variations in mass but rather to the manipulated independent variable. Controlling the mass helps isolate and identify the true impact of the independent variable being studied. Choices A, B, and D are incorrect. The period and length of the string are more likely to be independent variables or factors being manipulated in the experiment. The color of the ball is considered an extraneous variable that is not typically controlled for in this type of experiment.

2. Which of the following is NOT an element of the respiratory system?

Correct answer: A

Rationale: The correct answer is A: Ribs. The ribs are part of the skeletal system, providing structure and protection to the thoracic cavity. The trachea, diaphragm, and alveoli are all essential components of the respiratory system. The trachea carries air to and from the lungs, the diaphragm aids in breathing by contracting and relaxing to change the volume of the thoracic cavity, and the alveoli are tiny air sacs where gas exchange occurs in the lungs. Therefore, ribs do not play a direct role in the respiratory process and are not considered a part of the respiratory system.

3. Which of the statements reflect information that one could reasonably infer based on the author's tone?

Correct answer: C

Rationale: Based on the author's tone in the excerpt, one can infer that the author's tone is informative. The author aims to educate the reader about the unique characteristics of insects, their habitats, and their life cycle. The tone is objective and descriptive, focusing on providing factual information rather than persuading or expressing passion or somberness. Choices A, B, and D are incorrect because there is no evident attempt to persuade, show excitement, or express anger in the text. Instead, the author's primary focus is on providing detailed information about the topic.

4. One roommate is saving to buy a house, so each month, he puts money aside in a special house savings account. The ratio of his monthly house savings to his rent is 1:3. If he pays $270 per month in rent, how much money does he put into his house savings account each month?

Correct answer: A

Rationale: The ratio of his savings to his rent is 1:3, which means that for every $3 he pays in rent, he saves $1 for the purchase of a house. To calculate the amount saved, divide $270 by 3: $270 ÷ 3 = $90. Therefore, he puts $90 into his house savings account each month. Choice B, $270, is incorrect because that is the amount he pays in rent, not the amount saved. Choices C and D, $730 and $810, are incorrect as they do not align with the 1:3 ratio described in the question.

5. Which of the following prefixes would be used to indicate that something is inside or within?

Correct answer: A

Rationale: The correct answer is A: "intra–". The prefix "intra-" is used to indicate that something is inside or within. For example, "intracellular" means within a cell, and "intrapersonal" means within oneself. Choice B, "trans–", typically indicates across, beyond, or through, not inside or within. Choice C, "anti–", is used to indicate against or opposed to. Choice D, "hyper–", usually denotes excessive or above normal levels, not inside or within.

Similar Questions

He also took part in the community police supervision project. He played an instrumental role in the BPP breakfast program for impoverished African American children. Which revision best combines these sentences for clarity and flow?
Which hormone is responsible for regulating blood sugar levels?
Why are italics used in the sentence, 'Although Ben said he supported his coworkers, his actions suggested he did not condone their behavior'?
Which of the following is a logical conclusion that can be drawn from the information in the passage above?
What is missing from the following sentence: 'He asked, When is the assignment due?'

Access More Features

ATI TEAS Premium Plus
$149.99/ 90 days

  • Actual ATI TEAS 7 Questions
  • 3,000 questions with answers
  • 90 days access

ATI TEAS Basic
$49/ 30 days

  • 3,000 Questions with answers
  • 30 days access

Other Courses