Yes it is C but for future reference, both A and B are referring to solids, and D is referring to a gas, hope this is helpful later!
Symbiosis can vary between mutualism, parasitism, and commensalism, tho these grade into each other, it is often difficult to tell which is involved in a given relationship.
Answer:
Look up how to do this on Wikipedia.
Explanation:
Answer:
You have the exact same types of chemicals in your body as when you were younger.
Explanation:
A pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.
that is the definition^
