The American space shuttle (now retired) achieved this height of 100km at approximately 2 minutes 30 seconds into flight, then reached its initial orbit at an altitude between 300 and 500km generally at about 8 minutes 30 seconds into the flight.The Russian Soyuz rocket achieves similar times.he American space shuttle (now retired) achieved this height of 100km at approximately 2 minutes 30 seconds into flight, then reached its initial orbit at an altitude between 300 and 500km generally at about 8 minutes 30 seconds into the flight.
It is a group of organs in the body which work together to digest food. Digestion is the process by which our body breaks down food into substances we can take in (absorb) and use. Food travels through the alimentary canal which starts at mouth and ends at the anus.t completes the chemical digestion of food and the subsequent absorption of nutrients takes place in the small intestine. Nutrients are absorbed through the villi into the blood and lymph vessels. Hardly any food is absorbed elsewhere in the digestive system.
Gastrointestinal Tract. The gastrointestinal (GI) tract (also digestive tract, or alimentary canal) is the system of organs in the body that takes in food, digests it for the absorption of nutrients and energy, and expels waste material. The major functions of the GI tract are categorized as four distinct processes: Ingestion is the consumption of food and other substances through the mouth, as they pass by chewing and swallowing into the GI tract. Digestion is the