1.Biosphere is the first organization outside the individual living component. 2. A group of different species living in a specific area form a community 3. Mouth and stomach are one of the major organs of the digestive system. 4.The biological organazation is composed of 11 levels. 5. a group of squirrels living in a specific area formed a population. 6. Multicellular organism is composed of one cell and performs all life functions independently. 7. Several organs working together to perform a common function make up an organ system. 8.Circulatory system is composed of nose, lungs,mouth,and teachers. 9.Different organ systems are interested to form an ecosystem. 10. Brain is one of the major organs of the nervous system.
