The X and Y chromosome will not be the same size. What are the implications of this with respect to crossing over?

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.

check for the pregnancy rating of drug. if its class c or d see if other alternatives

a compound light microscope is used to magnify objects in steps.  

hope it