Which statement is supported by the two experiments? A.
Even when matter is heated or combined, the weight of the matter does not change.

B.
When matter is heated or combined, the total weight of the matter will increase.

C.
Even when matter is heated or combined, the shape of the matter does not change.

D.
When matter is heated or combined, the shape of the matter will always stay the same.

Part a - which gene to compare? in this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true?