Biology is concerned with

Options

A. Living organisms
B. Biomass
C. DNA
D. Life as recorded by fossils.

Answer

**Step-by-Step Solution:**

1. **Understanding Biology**: Biology is defined as the science of life. It is derived from the Greek words "bios," meaning life, and "logos," meaning study. Therefore, biology literally translates to the study of life.

2. **Focus of Biology**: The primary focus of biology is on living organisms. This includes all forms of life, from single-celled organisms to complex multicellular organisms like plants and animals.

3. **Branches of Biology**: Biology encompasses various branches that specialize in different aspects of living organisms. For example:
- **Genetics**: The study of genetic material, such as DNA, which is crucial for understanding heredity and variation in living organisms.
- **Paleontology**: The study of life as recorded by fossils, which helps us understand the history of life on Earth.

4. **Evaluating Options**: The question provides several options:
- Living organisms
- Biomass
- DNA
- Life as recorded by fossils

Among these, the most appropriate answer is "living organisms," as it directly aligns with the primary focus of biology.

5. **Conclusion**: Therefore, the correct answer to the question "Biology is concerned with" is **living organisms**.

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