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.
Overview. The human alimentary canal is a true and complete digestive tract. A true digestive tract is defined as one in which digestion is completely extracellular, occurring entirely within the tract's lumen or on the surface of its lining.