Facilitated diffusion involves Large molecules moving from high to low concentration, using energy and proteins
Small molecules moving from high to low concentration, using energy and proteins
Small molecules moving from low to high concentration, using proteins but no energy
Large molecules moving from high to low concentration, using proteins, but no energy

Large molecules moving from high to low concentration, using proteins, but no energy.

Explanation:

Facilitated diffusion is a type of passive transport. Passive transport, unlike active transport doesn't require any energy, but it does require channel proteins, unlike diffusion.

the electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, x-rays, and gamma-rays.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.