1. Organism
2. An organ is a part of an organism that has a specific function and is self-contained. An organ system is a group of organs that work together in order to function.
3 and 4 depend on the organ system you are working on.
AT THE START
The cycling action encourages repetitive movement of the ankle, which helps mobilise the joints and builds strength in the legs. Place the band around the feet and pull it up towards the body. This is a good exercise to strengthen the muscles.
A tablespoon of sugar has about 48 calories.