Jose has an extra chromosome on the 21st pair of chromosomes. the disorder was once referred to as mongolism. this will cause him to have

The answer is; Down Syndrome.

This is caused by nondisjunction during meiosis causing the daughter cell to have more than two copies of chromosome 21. The disorder is characterized by stunted growth, mental impairment, low muscle tone among others. The disease used to be referred to as Mongolism because the characteristic of those affected shared physical trait characteristic with the Blumenbach's Mongolian race.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.