Answer:
(a) Allow movement in only one plane/direction (that is extension or flexion)
(b) The skeletal system also produces blood cells in their bone marrow
Answer:
The correct answer would be number 2
Explanation:
It would be weathered into sediments and then eroded and deposited and then pressure and heat would turn it into a sedimentary rock and then it would melt down into magma again and then it would cool into igneous after erupting again.