A chromosomal disorder occurs when a person’s cells do not have the correct number of chromosomes. How can you use a karyotype to diagnose a disease?

Need before 9:00 am 2/13/2020

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.

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.