Will mark brainliest Which statement describes a compound machine?

It is made up of more than one simple machine.

It makes work more difficult.

It has movement in only one direction.

It can only be acted on by one force.

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

What must happen before a body cell can begin mitotic cell division

What is the temperature of one mole of helium gas at stp?