If a deep ocean trench is located adjacent to a continent, active volcanoes would likely be found landward from the trench.
The answer is primary structure. The protein's primary structure pertains to the amino acids' linear sequence in the chain. Usually, the protein's structure is combined together with a covalent bond that is produced while the process of biosynthesis is present.
OK First we need to eliminate 2 answers which would be A and C
that leaves B and D
I believe the correct answer is D
because it explores all of the relationships of the food web as to just one.
hope this helps