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ATI TEAS 7

Biology

1. Which of the following is NOT a source of genetic variation in a population?

Correct answer: D

Rationale: Rationale: A) Mutations in genes: Mutations are changes in the DNA sequence that can introduce new alleles into a population, leading to genetic variation. B) Genetic drift (random fluctuations in allele frequencies): Genetic drift refers to random changes in allele frequencies in a population, which can lead to genetic variation through chance events. C) Gene flow (movement of genes between populations): Gene flow occurs when individuals move between populations, bringing new alleles with them and increasing genetic variation within populations. D) Blending inheritance (traits of parents are averaged in offspring): Blending inheritance was a historical theory that suggested offspring inherit a blend of traits from their parents, leading to a reduction in genetic variation over time. However, this concept has been disproven by the understanding of Mendelian genetics, where traits are inherited independently and do not blend together. Therefore, blending inheritance does not contribute

2. According to Newton's third law of motion, for every action, there is an equal and opposite ___________.

Correct answer: a

Rationale: Newton's third law states that for every force or action, there is an equal and opposite reaction.

3. An ancient Egyptian pyramid has a square base with side lengths of 20 meters and a remaining height (after erosion) of 10 meters. Its original height was 30 meters. What was the volume of the pyramid in its original state?

Correct answer: A

Rationale: Use the formula for the volume of a pyramid with the original height and base area.

4. When writing dialogue, remember to:

Correct answer: C

Rationale: Effective dialogue captures the characters' unique voices and personalities through realistic speech patterns and word choices.

5. What is the purpose of genetic counseling?

Correct answer: C

Rationale: To provide information and support to individuals and families with genetic risks. Genetic counselors explain the implications of genetic testing, discuss risks and options, and offer emotional and psychological support.

6. Which of the following is NOT a method for preventing healthcare-associated infections (HAIs)?

Correct answer: D

Rationale: Rationale: Reusing sterile medical devices is not a method for preventing healthcare-associated infections (HAIs). In fact, reusing sterile medical devices can increase the risk of infections due to inadequate sterilization or potential damage to the devices during the reprocessing process. Proper sterilization and disposal of single-use medical devices are essential in preventing the transmission of infections in healthcare settings. A) Handwashing with soap and water is a crucial method for preventing HAIs as it helps to remove and reduce the number of pathogens on the hands of healthcare workers, preventing the spread of infections. B) Proper use of personal protective equipment (PPE) such as gloves, gowns, masks, and eye protection is important in preventing the transmission of infections between patients and healthcare workers. C) Reusing sterile medical devices is not a recommended practice as it can lead to the transmission of infections if the devices are not adequately ster

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