Which of the following best describes the primary focus of biology as a scientific discipline?

• A. The investigation of physical laws and motion
• B. The analysis of chemical reactions and compounds
• C. The exploration of celestial bodies and the universe
• D. The study of living organisms and their interactions with the environment

Answer: (D)

Verified step by step guidance

1. Understand the scope of biology as a scientific discipline. Biology is the study of life and living organisms, including their structure, function, growth, evolution, distribution, and interactions with their environment.
2. Eliminate options that do not align with the study of living organisms. For example, 'The investigation of physical laws and motion' pertains to physics, not biology.
3. Similarly, 'The analysis of chemical reactions and compounds' is primarily the focus of chemistry, though biology may involve biochemistry as a subfield.
4. Exclude 'The exploration of celestial bodies and the universe,' as this is the domain of astronomy, not biology.
5. Conclude that the correct answer is 'The study of living organisms and their interactions with the environment,' as it directly aligns with the primary focus of biology.