ATI TEAS 7
TEAS 7 practice test free science
1. Differentiate between the digestive and respiratory systems.
- A. Mouth
- B. Stomach
- C. Small intestine
- D. Lungs
Correct answer: D
Rationale: The correct answer is D - Lungs. The mouth, stomach, and small intestine are all components of the digestive system, which is responsible for breaking down food into nutrients that the body can absorb. On the other hand, the lungs are part of the respiratory system, which facilitates the exchange of oxygen and carbon dioxide between the body and the environment through breathing. While the digestive system processes food for energy and nutrients, the respiratory system is primarily focused on the exchange of gases necessary for cellular respiration. Choices A, B, and C are incorrect as they are all organs associated with the digestive system and do not pertain to the respiratory system.
2. Which of the following words is a synonym for avian in this passage?
- A. Bird
- B. Flying
- C. Aerial
- D. Plane
Correct answer: A
Rationale: The word 'avian' refers to birds, so the synonym is 'Bird.' In the provided passage, the term 'avian' is used to refer to birds, making 'Bird' the correct synonym. 'Flying' and 'Aerial' are related to the concept of flight but do not specifically refer to birds. 'Plane' refers to an aircraft and is not synonymous with 'avian' or 'bird.' Therefore, 'Bird' is the most appropriate choice as a synonym for avian in this context.
3. Which of the following compound sentences is punctuated correctly?
- A. The Forlows would be spending two weeks in Greece and Turkey.
- B. She was awake the minute the sun came up; although she had been up late the night before.
- C. Diana stepped out into the rain, but she had to turn immediately back inside for an umbrella.
- D. Aziz was astonished; he had never seen horses in the wild before.
Correct answer: D
Rationale: Choice D is the correct answer because it correctly punctuates the compound sentence with a semicolon separating the two independent clauses. The use of a semicolon is appropriate when two closely related independent clauses are joined without a coordinating conjunction. Choices A, B, and C have incorrect punctuation or conjunction usage. Choice A incorrectly uses a comma before 'and,' while Choice B uses 'though' which is not the best conjunction to join the two clauses. Choice C also lacks appropriate punctuation to separate the two independent clauses.
4. The plump old white cat basked in the warm sunlight. Which of the following options correctly punctuates the above?
- A. The plump, old, white cat basked in the warm sunlight.
- B. The plump, old, white, cat basked in the warm sunlight.
- C. The plump, old white cat basked in the warm sunlight.
- D. The plump old white cat, basked in the warm sunlight.
Correct answer: A
Rationale: The correct answer is A: 'The plump, old, white cat basked in the warm sunlight.' Commas should be used to separate coordinate adjectives describing the cat. In this sentence, 'plump,' 'old,' and 'white' are coordinate adjectives, each providing distinct information about the cat. Option B incorrectly places a comma after 'white,' creating a nonessential element. Option C lacks commas to separate the coordinate adjectives. Option D incorrectly places a comma after 'cat,' causing a punctuation error.
5. Which of the following is NOT a recognized mode of natural selection?
- A. Directional selection (favoring one extreme trait value on a spectrum)
- B. Disruptive selection (favoring both extreme trait values on a spectrum)
- C. Stabilizing selection (favoring the average trait value on a spectrum)
- D. Sexual selection (selection based on mate choice that influences reproductive success)
Correct answer: D
Rationale: A) Directional selection is a recognized mode of natural selection where one extreme trait value on a spectrum is favored over others, leading to a shift in the average trait value over time. B) Disruptive selection is a recognized mode of natural selection where both extreme trait values on a spectrum are favored over the average trait value, potentially causing the population to split into distinct groups. C) Stabilizing selection is a recognized mode of natural selection favoring the average trait value on a spectrum over extreme values, resulting in reduced genetic diversity. D) Sexual selection differs from traditional natural selection modes as it involves mate choice and competition for mates, not direct selection pressure on traits affecting survival and reproduction in the environment. Sexual selection can drive the evolution of traits enhancing an individual's attractiveness for mating purposes.
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