The failure of chromosomes to separate during meiosis, resulting in an abnormal karyotype like the one shown, is called

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.