Look at the structure in the picture below What function does the structure have?

The structure in the picture shows arms of an octopus.

An octopus has six or eight arms and perform several functions such as:

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.

b because they naturally adapt to their environment plz mark brainliest

explanation: