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Nursing Elites

ATI TEAS 7

physics

1. Which type of waves do not require a medium for propagation?

Correct answer: c

Rationale: Electromagnetic waves (such as light or radio waves) can travel through a vacuum as they do not require a medium.

2. Which of the following is NOT a function of the nervous system?

Correct answer: C

Rationale: The correct answer is C: 'Producing insulin.' The nervous system is responsible for detecting touch (option A), regulating body temperature (option B), and controlling muscle movement (option D). Insulin production is actually regulated by the endocrine system, specifically the pancreas. Insulin helps regulate blood sugar levels, which is not a function of the nervous system. It is important to differentiate between the roles of the nervous system and the endocrine system in maintaining bodily functions.

3. What is the process of separating a mixture based on the different boiling points of its components called?

Correct answer: C

Rationale: This technique separates components based on their boiling points, allowing for the collection of fractions with different boiling ranges.

4. During which stage of meiosis II are sister chromatids separated, resulting in four genetically unique daughter cells?

Correct answer: D

Rationale: Rationale: - Prophase I occurs in meiosis I, not meiosis II. During Prophase I, homologous chromosomes pair up and exchange genetic material in a process called crossing over. - Prophase II is the stage where the nuclear envelope breaks down, and spindle fibers start to reappear, preparing the cell for division. Sister chromatids are still attached during Prophase II. - Anaphase I is the stage in meiosis I where homologous chromosomes are separated and pulled to opposite poles of the cell. - Anaphase II is the stage in meiosis II where sister chromatids are separated and pulled to opposite poles of the cell, resulting in four genetically unique daughter cells. This is the stage where the final separation of genetic material occurs, leading to the formation of haploid daughter cells.

5. The lymphatic system works closely with which other body system to fight infections?

Correct answer: A

Rationale: The correct answer is the Respiratory system. The lymphatic system and the respiratory system work closely together to fight infections. The respiratory system helps to filter out pathogens and other harmful substances from the air we breathe, while the lymphatic system produces and transports white blood cells (lymphocytes) that play a key role in the immune response against infections. This collaboration helps the body to defend against respiratory infections and maintain overall health.

6. What phenomenon occurs when a wave encounters a change in medium causing a change in its speed and direction?

Correct answer: a

Rationale: Refraction happens when a wave changes its speed and direction due to encountering a change in medium.

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