The exchange of materials between a cell and its environment takes place across cell?A. MitochondriaB. MembraneC. NucleusD. Nucleolus

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

What object a collides with object b and bounces back its final momentum is?

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?