Why do skeletal muscles work in pairs? A One tightens and the other relaxes to make the bones move.

B Multiple muscles have to tighten to make joints move.

C They cancel each other out.

D Bones are resistant to movement.

ability to bond woth oxygen

on the planet jupiter, the acceleration due to gravity is approximately 26 m s2 , roughly 2.7 times the acceleration due

mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. weight is the measure of the force of gravity on an objects's mass, while mass is the measure of how much matter there is in an object.