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

A. The onion cells have lysosomes, and the cheek cells do not.

B. The cheek cells have larger vacuoles than the onion cells.

C. The cheek cells have a nucleus, and the onion cells do not.

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

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Solutions to environmental problems in europe must

Which are reasons cells undergo cell division?