3. what type of microscope (if any) would you choose to do each of the following:
a. observe e. coli bacterial cells (3 x 0.6 pm)

E. Coli Microscopy

To determine whether a strain (s) of E. coli is present in a sample, it is necessary to stain the sample. Here, Gram stain is used given that it helps distinguish between the gram positive and gram negative bacteria (such as E. coli) in a sample.

Explanation:

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