Which force requires contact A. the force exerted by air as an object moves through it
B. the force produced by interactions between magnetic objects
C. the force produced by interactions between electrically charged objects
D. the force of attraction between two masses

Which group of protists would be most likely to have cilia as adults and why? (1 point)the sporozoan protists would since they have to spread their spores around.the heterotrophic protists would since they use them to gather food.the parasitic protists would since they need to find other organisms to attack.the autotrophic protists would since they must move to find light.