Osteogenesis imperfecta is a disorder involving the osteoblasts, creating weak bone matrix.

a. true
b. false

True

Explanation:

The disease called as the Osteogenesis imperfecta is the genetic disorder which causes imperfect formation of bones. This occurs due to abnormalities in the molecule of collagen which makes the matrix weak and  this causes multiple fractures of the bone even before birth in severe cases.  In milder cases the bones break with mild trauma.

ia. mver.y..sor .r..yinee..i am.ina.rush.pleas eforg.ive   meiknowiama. nas.s holei apalo.gize

i wish it got that cold here ): im in florida and i've never even seen snow, it never feels like a real holiday. i hope you have a good one with your family !