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CNA Competency Exam Biology — practice by topic

Browse 29 questions across 4 Biology topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Biology topics

Anatomy (29)Biology (29)Body Organisation (29)Human Body (29)

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A student learns that anatomy studies structure. Physiology studies:Read the answer and worked solution →Study of structures large enough to see with the naked eye is also called macroscopic or:Read the answer and worked solution →The largest organ system in the body, including skin, hair and nails, is the:Read the answer and worked solution →A patient lying face down is described as:Read the answer and worked solution →

Worked practice questions

A student learns that anatomy studies structure. Physiology studies:

  1. Function
  2. Fixation
  3. Filtering
  4. Flavouring
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Correct answer: A. Function

1. The two subjects split the body between them. 2. One describes what parts look like and where they sit. 3. The other studies how they work, which is function. _Source: OpenStax Anatomy and Physiology 2e, Chapter 1, An Introduction to the Human Body._

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Study of structures large enough to see with the naked eye is also called macroscopic or:

  1. Global anatomy
  2. Gross anatomy
  3. Guided anatomy
  4. Graded anatomy
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Correct answer: B. Gross anatomy

1. Macro means large. 2. The term names the level of detail being examined. 3. It is gross anatomy. _Source: OpenStax Anatomy and Physiology 2e, Chapter 1, An Introduction to the Human Body._

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The largest organ system in the body, including skin, hair and nails, is the:

  1. Intermediary
  2. Integumentary
  3. Interoceptive
  4. Interstitial
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Correct answer: B. Integumentary

1. It covers the entire outside of the body. 2. Its surface tissue keeps microorganisms and toxins out. 3. It is the integumentary system. _Source: OpenStax Anatomy and Physiology 2e, Chapter 1, An Introduction to the Human Body._

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How to practise

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