Biology Deffinitions

5. the fourth phase of mitosis when the membrane surrounding the nucleus re-forms, creating two new nuclei
8. the third phase of mitosis when the chromosomes separate and move to opposite ends of the cell
9. the prosses by which nutrients pass from the digestive system to the blood
11. air sacs in the lungs where gas exchange occurs
13. controls all cell activity

1. the stage in the cell cycle when a cell grows and carries out its usual functions
2. the first phase of mitosis when the nucleus membrane disappear and create chromosomes from
3. align in the center of the cell
4. the second phase of mitosis when the
6. the smallest blood vessel
7. helps to produce proteins which help make up a cell's structure
10. specialized cells working together to perform a function
12. different tissues working together to perform a specific task