1: Thewissen and colleagues have discovered the skeleton of Indohyus, an approximately 48-million-year-old even-toed ungulate from the Kashmir region of India, as the closest known fossil relative of whales.
2: Bones protect and support vital organs and work with muscles to help the body move. To gain strength and stability, bones and teeth must absorb nutrients, such as calcium and phosphorus, in a process called mineralization.
Explanation:
sorry I dont have the answer to the 3rd question. Glad to be of help though