Which of the following would provide the best evidence that species A and species B have a common ancestor? O A. The limbs of species A perform a function that is similar to the limbs of species B, but they have a different structure.
OB. Species A has limbs, and species B does not have limbs.
O c.
The limbs of species A and species B have a different structure and function.
OD
The limbs of species A have a similar structure to the limbs of species B, but they perform a different function.

I believe the answer is D

Explanation:

idk why hjggjhjkhj

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.