1. A-closing B- opening 2. In the pic
3. A- a constricted trachea B- blocked sinuses C- and inactive diaphragm

How does a bone marrow transplant treat sickle cell disease?

The load is the pivot point of a lever.

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs