A scientist is observing onion cells and human cheek cells under a microscope.Which observation does she most likely make?

Onion cells are plant cells, so they have a rigid cell wall outside the cell membrane. Human cheek cells are animal cells and do not have a cell wall. Both types of cells have ribosomes, mitochondria, and a nucleus, so the observation that distinguishes them is that onion cells have a cell wall and cheek cells do not.

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