Which of the following is considered a defining characteristic of living organisms?

• A. Ability to reproduce and pass on genetic information
• B. Existence in multicellular form only
• C. Presence of a cell wall
• D. Ability to move voluntarily

Answer: (A)

Verified step by step guidance

1. Understand the question: The problem is asking for a defining characteristic of living organisms. This means we need to identify a feature that is fundamental to all living things, not just specific groups.
2. Review the options provided: (1) Ability to reproduce and pass on genetic information, (2) Existence in multicellular form only, (3) Presence of a cell wall, (4) Ability to move voluntarily.
3. Analyze each option: (1) The ability to reproduce and pass on genetic information is a universal characteristic of all living organisms, as it ensures the continuation of life and the transfer of hereditary traits. (2) Existence in multicellular form only is incorrect because many living organisms, such as bacteria, are unicellular. (3) Presence of a cell wall is not universal, as animal cells lack cell walls. (4) Ability to move voluntarily is not a defining characteristic, as many organisms, like plants, do not move voluntarily.
4. Conclude which option is correct: Based on the analysis, the ability to reproduce and pass on genetic information is the defining characteristic that applies to all living organisms.
5. Summarize the reasoning: The defining characteristic of living organisms is their ability to reproduce and pass on genetic information, as this is essential for the survival and evolution of life. The other options are either not universal or not fundamental to all living organisms.