Question

question 3 of 10
the human brain is a complicated system built on ____ units.
a. independent
b. complex
c. simple
d. electrical

Explanation:

To solve this, we analyze the options:

• Option A: The brain's units (like neurons) don't act fully independently as they interact. Eliminate A.
• Option B: The units themselves aren't "complex" in the context of building a complicated system (the brain is complicated, but its basic units are simple in structure relative to the whole). Eliminate B.
• Option C: The human brain is a complex system, and complex systems are often built from simple units (e.g., neurons are simple in their basic functional unit role, and their interactions create complexity). This fits.
• Option D: While the brain has electrical activity, the units (neurons) aren't defined as "electrical" units in the sense of building the system's structure. Eliminate D.

Answer:

C. simple