How do the independent and dependent variables in an experiment compare? a. they are the exact same as one another. b. they have no effect on one another. c. the dependent variable controls the independent variable. d. the independent variable controls the dependent variable.

The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above