The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) for the carbon cycle. A. carbon flux
B. carbon dioxide
C. carbon source
D. carbon sink

I think it is C. Carbon source

Explanation:

Hope this helps

One hypothesis would be "The inheritance of one trait does not affect the inheritance of another trait".

It can be explained with the help of law of independent assortment.

It states that the genes are randomly distributed in the gametes, that is, independent of each other.

Experimentally it can be tested with the help of dihybrid cross.