Which of these observations would provide the best support for a claim that the flatwing phenotype arose independently on
Kauai and Oahu?
A. The stomach contents of males from both islands
contain the same plant material.
B. Crickets are transported between the Hawaiian
Islands by tourists.
C. Males from each island have different genetic
mutations affecting wing shape.
D. The physical environment and climate on both islands
are very similar.

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.

cell regulation is conducted by special proteins.

i believe your answer would be c.. : )

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.