Which of the following is true about centripetal force? Check all that apply.
A. Without centripetal force, an object would continue in a straight
line.
B. Centripetal force is the same as gravity.
O c. Centripetal force keeps a car on the road going around a curve.
O D. It's also called an inward force.
OE. It's the same as centrifugal force.

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

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.

When is your breathing likely to speed up? a. when your white blood cells increase b. when your cells need more energy c. when your heart cells need more carbon dioxide d. when your blood cells have too much oxygen