Question

a scientist is observing onion cells and human cheek cells under a microscope. which observation does she most likely make? the onion cells have ribosomes, and the cheek cells do not. the cheek cells have mitochondria, and the onion cells do not. the cheek cells have a nucleus, and the onion cells do not. the onion cells have a cell wall, and the cheek cells do not.

Explanation:

Onion cells are plant cells which have a cell - wall made of cellulose. Human cheek cells are animal cells which lack a cell - wall. Both plant and animal cells (onion and cheek cells) have ribosomes, mitochondria, and a nucleus as they are eukaryotic cells.

Answer:

The onion cells have a cell wall, and the cheek cells do not.