Which is an important function of lipids in the body?
provide the body with energy and fiber
provide the body with vitamins and bile salts
provide the building blocks for muscle tissue
provide control of substances going into and out of cells

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space