Picture A is multicellular and made of round cell that are about 10 micrometers in diameter. 
Picture B shows a multicellular organism with square cells about 50 micrometers in diameter. 
Picture C is unicellular and about 500 nanometers in diameter.

Image Source: By CNX OpenStax CC BY 4.0, via Wikimedia Commons

Three pictures of different cells are shown above with scales shown for size reference. What type of cell is shown in picture (b)? How can you tell?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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