Conversion of Units: A typical ruby-throated hummingbird is 8 cm long. Express its length in millimeters and micrometers (µm).
A. 80 mm; 800 µm
B. 80 mm; 80,000 µm
C. 800 mm; 0.008 µm
D. 800 mm; 0.8 µm
E. 0.8 mm; 8000 µm
Answer: B
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