How is movement in vertebrates analogous to the movement of a lever? What will be an ideal ...

Answer to q. 1

The bones connected by movable joints work like levers. Levers are ridged and move around a pivot
point known as a fulcrum. Levers, like joints, differ with respect to where the fulcrum is along the
lever and where the force is applied. Whether muscles produce large movements at high speed is
dependent on where the fulcrum is relative to where the force is applied.

Answer to q. 2

Red marrow is found in the interior of some flat bones such as hip and rib bones. Red marrow is the
primary source of new red blood cells. Yellow marrow is found in the shaft of long bones such as the
femur. Yellow marrow is a type of adipose tissue and is a source for some white blood cells.