Steven Spielberg returns to executive produce the long-awaited next installment of his groundbreaking Jurassic Park series, Jurassic World. Colin Trevorrow directs the epic action-adventure based on the novel âJurassic Parkâ by Michael Crichton.
The respiratory system is involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment. In air-breathing vertebrates like human beings, respiration takes place in the respiratory organs called lungs.
Cellular respiration is not the same as breathing. Cellular respiration is a metabolic pathway that converts nutrients into energy (ATP) that organisms need to live. For aerobic cellular respiration to occur, oxygen has to be present. Humans and other animals obtain oxygen for cellular respiration through breathing.