Osteoclasts are the multinucleate bone cell that are responsible for absorbing bone tissue during healing and growth while osteoblasts are the cell responsbile for formation of new bones.
If there will be greater amount of osteoclasts than osteoblasts than the osteoclasts will allow calcium, present in bones to get dissolve which causes deformity of bones known as Osteoporosis (demineralization of the bones).
<em>Due to this the calcium level will increase in the kidney and can cause kidney stone as well.</em>
One word answer is Mutation nothing is perfect but some bacteria also have changes from conjugation aka sex between bacteria even though they are asexual organisms
The 'gene' which causes (inherited, red and green types of) colour blindness is found only on the X chromosome. So, for a male to be colour blind the colour blindness 'gene' only has to appear on his X chromosome. For a female to be colour blind it must be present on both of her X chromosomes.
If the speed of an object increases, then its kinetic energy will increase proportionally because speed and kinetic energy have a linear relationship when graphed.