Final answer:
The best observation to be recorded using a camera would be how microorganisms move about in pond water. The correct answer is D. How microorganisms move about in pond water.
Step-by-step explanation:
The best observation to be recorded using a camera would be D.
How microorganisms move about in pond water.
A camera can capture the movement of microorganisms in real-time, which would be difficult to accurately observe and record manually.
By using a camera, scientists can study the behavior and patterns of microorganisms in pond water.
Therefore, the correct answer is D. How microorganisms move about in pond water.