In scientific terminology, what word describes a structured arrangement of connected parts that function as a whole?

• A. Producer
• B. System
• C. Ecosystem
• D. Habitat

Answer: (B)

A system is a structured collection of interconnected parts that work together to form a unified function. This idea captures why it’s the best fit here: it emphasizes how different components interact and coordinate to produce a whole that behaves as a single unit. For example, the circulatory system combines the heart, blood, and vessels to move blood throughout the body. A producer, in contrast, is a type of organism that makes its own energy (like plants). An ecosystem refers to the community of living things plus the physical environment, a broader context rather than the arrangement of parts. A habitat is the natural place where an organism lives, not the concept of an integrated set of components. So the term that best describes a structured arrangement of connected parts functioning as a whole is system.