ATI TEAS 7
Biology
1. What is the purpose of genetic counseling?
- A. To treat genetic disorders.
- B. To diagnose genetic diseases in newborns.
- C. To provide information and support to individuals and families with genetic risks.
- D. To collect DNA samples for research purposes.
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.
2. Which property of a wave determines its energy?
- A. Wavelength
- B. Amplitude
- C. Frequency
- D. Velocity
Correct answer: b
Rationale: Amplitude is directly related to the energy carried by a wave - higher amplitudes correspond to higher energy waves.
3. What is the coefficient of oxygen in the balanced chemical equation for the combustion of methane (CH4)?
- A. 1
- B. 2
- C. 3
- D. 4
Correct answer: b
Rationale: The balanced equation is CH4 + 2O2 → CO2 + 2H2O, so the coefficient of oxygen is 2.
4. Ms. Castro learns that some leaders are transactional leaders. Which of the following does
- A. Focuses on management tasks
- B. Is a caretaker
- C. Uses trade-offs to meet goals
- D. Inspires others with vision
Correct answer: C
Rationale: The correct answer is C: 'Uses trade-offs to meet goals.' Transactional leaders focus on the exchange or transaction that occurs between them and their followers. They set clear expectations and goals for their followers and use rewards and punishments to motivate them. This approach involves making trade-offs to achieve desired outcomes, such as rewarding employees for meeting targets or penalizing them for not meeting expectations. Options A and B do not directly relate to transactional leadership, as it is more about goal achievement and motivation through rewards and punishments. Option D describes a transformational leader, who inspires and motivates others through a shared vision and values, which is different from the transactional leadership style described in the question.
5. A pizza has a diameter of 40cm. What is its perimeter (circumference)?
- A. 62.8cm
- B. 125.5cm
- C. 125.6cm
- D. 251.2cm
Correct answer: C
Rationale: Multiply the diameter by π: perimeter = π * diameter = π * 40cm ≈ 125.6cm (Note: π ≈ 3.14)
6. How can you predict the charge of an ion formed by an element based on its position on the periodic table?
- A. Look for elements with similar atomic weights
- B. Identify the group number, which often indicates the typical ionic charge
- C. Identify the group number, which often indicates the typical ionic charge
- D. Analyze the element's position within the period
Correct answer: B
Rationale: The group number of an element on the periodic table often indicates the typical ionic charge it will form. Elements in the same group tend to have similar chemical properties, including the tendency to gain or lose electrons to achieve a stable electron configuration. This predictable pattern allows us to anticipate the charge of an ion formed by an element based on its position in the periodic table.
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