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 bones is part of the axial skeleton?
- A. Femur
- B. Humerus
- C. Skull
- D. Pelvis
Correct answer: C
Rationale: The correct answer is C: Skull. The axial skeleton consists of bones along the body's central axis, including the skull, vertebral column, ribs, and sternum. Choices A, B, and D are incorrect because the femur, humerus, and pelvis are part of the appendicular skeleton, which comprises the bones of the limbs and girdles.
3. A large geographic area characterized by similar climate, plants, and animals is called a:
- A. Population
- B. Community
- C. Biome
- D. Ecosystem
Correct answer: C
Rationale: A) Population refers to a group of individuals of the same species living in a specific area. B) Community refers to all the populations of different species living and interacting in a particular area. C) Biome is a large geographic area characterized by similar climate, plants, and animals. Biomes are defined by factors such as temperature, precipitation, and vegetation types. D) Ecosystem refers to a community of living organisms interacting with each other and their physical environment. An ecosystem can be part of a biome.
4. According to the aforementioned passage, what is the speaker's second desire for his time in front of the audience?
- A. To read a Christmas story
- B. For the working man to have a say in the management of the institution designed for his benefit
- C. To have an opportunity to stand in their presence
- D. For the life of the institution to be essential to the audience as a whole
Correct answer: B
Rationale: The correct answer is B. The speaker's second desire for his time in front of the audience is for the working man to have a say in the management of the institution designed for his benefit. This is evident from the passage where the speaker emphasizes the importance of the working man having a share in the management of an institution designed for his benefit. Choice A is incorrect because although reading a Christmas story was mentioned as the first desire, it was not the second desire. Choice C is incorrect as the desire mentioned is not about standing in the audience's presence but rather about the working man having a say in the institution. Choice D is incorrect as it does not align with the speaker's second desire as mentioned in the passage.
5. An investigator wishes to test the effect of temperature on the durability of a certain material. He places five blocks of this material in a sunny area in a meadow and five more in a cold area high in the mountains. He then monitors them over time. What is the main problem with this experiment?
- A. Ten subjects are far too small a number to obtain effective results.
- B. It is impossible to control for the fact that the blocks in the mountains were placed later.
- C. There are too many variables that are not being controlled for.
- D. Nothing is wrong with this experiment; this demonstrates good experimental procedure.
Correct answer: C
Rationale: The main problem with this experiment is that there are too many variables that are not being controlled for. The investigator is only changing one variable (temperature) while there are other variables at play such as humidity, exposure to light, and potential differences in the material itself. Without controlling or accounting for these additional variables, it would be difficult to determine if any observed differences in durability are solely due to temperature. Choice A is incorrect because the issue is not solely about the number of subjects but about the lack of control over variables. Choice B is not the main problem as the order of placement may not significantly impact the results. Choice D is incorrect as the experiment lacks proper control over variables, which is a crucial aspect of good experimental procedure.
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