What explains a broken bone healing? o New cells with identical DNA replace the old cells through cell division Cells with new, unique DNA replace the old cells through cell division. O New atoms and molecules are added to the bone through cellular respiration. The cells get larger to replace the damaged cells.

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

How do demetri's results show that digestive enzymes are crucial to maintaining homeostasis inside the body?