ATI TEAS 7
Scientific Reasoning
1. Two scientists analyze the same data set on climate change, but they reach different conclusions. What is the MOST likely reason for this difference?
- A. One scientist has more experience than the other.
- B. They used different statistical methods.
- C. They have different personal biases.
- D. One scientist has access to additional data.
Correct answer: B
Rationale: Different analysis methods can lead to different interpretations, even with the same data. Biases and experience might play a role but are less likely the primary cause.
2. Which type of orbital can hold a maximum of 10 electrons?
- A. s orbital
- B. p orbital
- C. d orbital
- D. f orbital
Correct answer: D
Rationale: Each f orbital can hold up to 2 electrons, and there are 5 f orbitals, totaling a maximum of 10 electrons.
3. What is the term for the process of converting a liquid into a gas at a temperature below its boiling point?
- A. Vaporization
- B. Evaporation
- C. Condensation
- D. Sublimation
Correct answer: B
Rationale: Evaporation is the process of converting a liquid into a gas at a temperature below its boiling point. The other choices describe different phase changes.
4. The spleen, an organ associated with the lymphatic system, plays a crucial role in:
- A. Regulating blood sugar levels
- B. Filtering blood and destroying old red blood cells
- C. Producing digestive enzymes
- D. Secreting hormones
Correct answer: B
Rationale: The correct answer is B: 'Filtering blood and destroying old red blood cells.' The spleen is part of the lymphatic system and acts as a blood filter, removing old or damaged red blood cells and helping to fight infections. It does not play a role in regulating blood sugar levels (A), producing digestive enzymes (C), or secreting hormones (D). Understanding the function of the spleen in filtering blood and removing old red blood cells is crucial for grasping its role in maintaining overall health and immunity.
5. Which word best completes the sentence: "The scientist's breakthrough was met with _____ applause."
- A. thunderous
- B. scattered
- C. polite
- D. hesitant
Correct answer: A
Rationale: "Thunderous" emphasizes the intensity and volume of the applause, fitting the significance of the breakthrough.
6. Antibiotic resistance in bacteria is an example of:
- A. Convergent evolution
- B. Divergent evolution
- C. Microevolution
- D. Macroevolution
Correct answer: C
Rationale: Rationale: - Convergent evolution (option A) refers to the process by which different species evolve similar traits independently in response to similar environmental pressures. Antibiotic resistance in bacteria does not involve different species evolving similar traits. - Divergent evolution (option B) refers to the process by which two or more related species become more dissimilar over time. Antibiotic resistance in bacteria does not involve related species becoming more dissimilar. - Microevolution (option C) refers to changes in allele frequencies within a population over a relatively short period of time. Antibiotic resistance in bacteria is a classic example of microevolution, where bacteria evolve resistance to antibiotics through the natural selection of pre-existing resistant strains. - Macroevolution (option D) refers to large-scale evolutionary changes that result in the formation of new species or higher taxonomic groups. Antibiotic resistance in bacteria does not involve
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