Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil