ATI TEAS 7
Anatomy
1. Alpha waves, characteristic of quiet wakefulness and relaxation, have a frequency range of:
- A. 0.5-4 Hz
- B. 4-8 Hz
- C. 8-13 Hz
- D. 13-30 Hz
Correct answer: B
Rationale: Alpha waves are typically associated with relaxed wakefulness and quiet, non-arousing states. They have a frequency range of 8-13 Hz. This frequency range is slower than beta waves (13-30 Hz) associated with active thinking and concentration, making option C the correct answer. Options A (0.5-4 Hz) and D (13-30 Hz) do not fall within the typical range of alpha waves. Therefore, option B is the most appropriate choice for the frequency range of alpha waves, reflecting the brain's state during relaxation and quiet wakefulness.
2. The final sentence highlights the need for
- A. Public funding for scientific research and development of climate-friendly technologies.
- B. Individual lifestyle changes and responsible consumption habits to reduce carbon footprints.
- C. International partnerships and collaborative efforts to implement effective climate action plans.
- D. Educational campaigns raising awareness about the urgency of addressing climate change.
Correct answer: C
Rationale: The emphasis on "international cooperation," "robust scientific research," and "adapting" suggests a focus on collaborative and multi-faceted solutions, aligning with C.
3. An object is thrown upwards and reaches a maximum height. Which of the following statements is TRUE about its velocity and acceleration at the peak?
- A. Velocity is zero and acceleration is maximum upwards
- B. Velocity is maximum and acceleration is zero.
- C. Velocity is maximum and acceleration is maximum upwards.
- D. Velocity is zero and acceleration is maximum downwards.
Correct answer: A
Rationale: At the peak, the object momentarily stops moving (zero velocity), but gravity still pulls it upwards, causing a maximum upward acceleration.
4. What is the name for the hard, protective protein that makes up hair and nails?
- A. Collagen
- B. Keratin
- C. Elastin
- D. Fibrin
Correct answer: B
Rationale: The correct answer is B: Keratin. Keratin is the name for the hard, protective protein that makes up hair and nails. Collagen is a structural protein found in connective tissues, while elastin is a protein that allows tissues in the body to resume their shape after stretching. Fibrin is a protein involved in blood clotting. Understanding the different roles of these proteins can help in identifying the correct answer as keratin specifically pertains to hair and nails.
5. What is the common name for the compound CH₃COOH?
- A. Acetic acid
- B. Formic acid
- C. Butyric acid
- D. Propionic acid
Correct answer: A
Rationale: CH₃COOH is commonly known as acetic acid. The other choices represent different organic acids.
6. When writing a blog post, consider including:
- A. Long, detailed paragraphs for comprehensive coverage.
- B. Frequent use of emojis and informal slang for a casual tone.
- C. Engaging headlines, subheadings, and bullet points for scannability.
- D. ense academic vocabulary to sound intellectual.
Correct answer: C
Rationale: Blog posts require engaging formatting and concise writing for readers who scan and skim. Headlines, subheadings, and bullet points improve readability.
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