2011 â The first of its kind in North America, EdgeWalk is the worldâs highest full circle hands-free walk on a 5 ft (1.5 m) wide ledge encircling the top of the CN Towerâs main pod, 356m, (1168 ft, 116 stories) above the ground.
Why does cellular respiration add carbon dioxide to the atmosphere but photosynthesis does not? During photosynthesis, carbon dioxide and water are used to produce sugars and oxygen. During respiration, the sugar glucose and oxygen and used to produce carbon dioxide and â¦water.  Resource: Science Explorer. Prentice Hall Life Science Text Book. No copyright intended.
What are the three major steps of cellular respiration? First, large macromolecules such as proteins and polysaccharides are broken down into the smaller subunits, such as amino acids and simple sugars (glucose). Second, these subunits go through the process of glycolysis, which is anaerobic respiration. They are broken down into two 3C compounds called pyruvate.