ATI TEAS 7
Mathematics
1. A doctor prescribes 150 milligrams of medication to be taken orally every 12 hours. How many grams should the patient take per dose?
- A. 0.015 grams
- B. 0.15 grams
- C. 1.5 grams
- D. 15 grams
Correct answer: A
Rationale: 1 gram is equal to 1000 milligrams. Divide the dosage in milligrams (150 mg) by the conversion factor (1000 mg/gram) to find the dosage in grams: 150 mg / 1000 mg/gram = 0.15 grams.
2. Which sentence avoids a dangling modifier?
- A. Walking down the street, a bird swooped down from a tree.
- B. Having finished the report, it was time for lunch.
- C. Reading the book, I learned a lot about ancient history.
- D. Exhausted from the hike, the tent was a welcome sight.
Correct answer: C
Rationale: Option C places the participle phrase "Reading the book" in front of the subject "I," eliminating the dangling modifier.
3. The science of classifying organisms into different groups based on their evolutionary relationships is called:
- A. Taxonomy
- B. Microbiology
- C. Genetics
- D. Epidemiology
Correct answer: A
Rationale: Rationale: Taxonomy is the science of classifying organisms into different groups based on their evolutionary relationships. It involves identifying, naming, and categorizing living organisms according to their similarities and differences. Microbiology (option B) is the study of microorganisms, Genetics (option C) is the study of genes and heredity, and Epidemiology (option D) is the study of the distribution and determinants of health-related states or events in populations.
4. Identify the appositive in the following sentence: "My favorite author, Agatha Christie, wrote many detective novels."
- A. favorite
- B. Agatha Christie
- C. many
- D. novels
Correct answer: B
Rationale: An appositive renames or clarifies the noun or pronoun preceding it.
5. A study finds a link between increased screen time and lower academic performance. What additional information would be most helpful in interpreting this finding?
- A. The average socioeconomic status of the study participants.
- B. The specific types of screen activities participants engaged in.
- C. Whether the students had access to healthy meals and snacks.
- D. The participants' ages and grade levels.
Correct answer: B
Rationale: Knowing the specific types of screen activities participants engaged in would provide crucial context for interpreting the link between increased screen time and lower academic performance. For example, if the majority of screen time was spent on educational apps or programs, the impact on academic performance may differ compared to if the screen time was mostly spent on social media or gaming. Understanding the nature of screen activities can help determine the potential mechanisms behind the observed relationship.
6. What is the difference between a germline mutation and a somatic mutation?
- A. Germline mutations are passed to offspring, while somatic mutations are not.
- B. Germline mutations occur in reproductive cells, while somatic mutations occur in body cells.
- C. Germline mutations only affect genes, while somatic mutations can affect any DNA.
- D. Germline mutations are always beneficial, while somatic mutations are always harmful.
Correct answer: B
Rationale: Rationale: - Germline mutations are changes in the DNA of reproductive cells (sperm or egg cells) and can be passed on to offspring, affecting all cells in the resulting organism. - Somatic mutations are changes in the DNA of non-reproductive cells (body cells) and are not passed on to offspring. These mutations only affect the cells that arise from the mutated cell. - Option A is incorrect because somatic mutations are not passed to offspring. - Option C is incorrect because both germline and somatic mutations can affect any DNA. - Option D is incorrect because the effects of mutations, whether germline or somatic, can be beneficial, harmful, or have no significant impact.
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