A2-year-old boy swallows a penny. the boy's mother checks his stool for several days, but the penny does not appear. meanwhile, the boy has lost his appetite and seems to have difficulty eating. when a foreign object is swallowed, it often lodges at which portion of the gut?
anus
duodenum
ileocecal sphincter
lower esophageal sphincter

true is the

well the answer is 2!

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.  

the answer u all are looking for is 4000000000000000000000 million years.