Pl help The hard outer layer of bone serves
which purposes? Select all that apply.

provides structure to the body

protects delicate organs

produces red blood cells

facilitates body movement

It provides structure to the body. With our our strong healthy bones to support us, we would just be walking skin bags with organs and hair. The bones give us the legitimate support for everything, the muscles attach to the bones, so while it may feel like your muscles are doing all of the work, they aren’t. Your bones play a huge roll, in you everyday moving. What makes bones stronger? MILK!

What happens to the influenza virus every 20-40 years and why?