Smooth muscle, which is a tissue made up of a type of specialized muscle cell, functions in which process? food digestion skeletal movement pumping of blood heart contraction.

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

The changes that the students observed, rapid breathing and sweating, would be classified as a to a change in a system.