Im bored sum 1 talk to me if i dont respond im playing fortnite but ill deff respond fast

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

Select all that apply. which of the following are functions of the skeletal system? 1. to provide the body with a strong and mobile framework 2. to allow the body to move 3. to protect internal organs from sunlight, bacteria, and injury 4. to supply the body with blood cells and minerals

Scientists who study the anatomy of the systems in the human body focus their studies on