When comparing the sequences of a homologous gene in four different species, one pair of species shows a 1% difference, whereas the other pair shows a 3% difference. Which pair diverged longer ago from their common ancestor and why?

The pair with a 3% difference; a larger difference (3% instead of 1%) indicates that there has been more time to accumulate mutations

Explanation:

mailman is the most possessive answee

the word that best matches the meaning of the expression "went to the big ocean" is died.

the goldfish died, which is why the father looks at the children mournfully. the "big ocean" is the father's way of saying fish heaven. he could have just said that the goldfish died, but this way, the children imagine the fish in a bigger, better place instead of just picturing a dead fish.

explanation: