what happens when 
a.  bone is dipped in HCL
​b.  bone is dried
c.   heparin is absent in the blood
d.   skin epithelium is not statified
​e.    statified squamous epithelium lines the blood vessel
f.      ligaments are over stretched
g.     apical meristem is cut or damaged
h.    striated muscles contract rapidly for a long time.

(a) When bone is dipped in HCl, the bone becomes brittle because the calcium gets dissolved due to the action of acid.

(b) When bone is dried it again becomes brittle due to breakage of collagen.

(c) If heparin is absent in blood then blood clot would not form on any injury.

(d) If skin epithelium is not stratified than the protection to the innermost layers would be very less. The skin would be prone to injuries, abrasions and weather changes. Also we shed skin continuously, if the skin is unstratified the replacement and generation of new cells will not match pace.

(e) If  stratified squamous epithelium lines blood vessels then transport of molecules and gases across the blood vessels would not happen. The cells will not get oxygen or glucose and will also not be able to give their waste products like carbon dioxide for excretion. It would lead to accumulation of wastes and low supplies ultimately leading to death.

(f) If ligaments are overstretched it would cause a sprain.

(g) The plant has one apical dominant meristem on its trunk that helps the plant to grow vertically.  If this dominant meristem is cut off or damaged, one or more lateral meristems will assume dominance, these meristems will start growing faster and the new growth will be lateral. Often several branches will exhibit this behavior after the removal of apical meristem, leading to a bushy growth. 

(h) If striated muscles contract rapidly for a long time than it would consume more energy to overcome the friction.
 
 
 
 

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