Do you recall any vertebrates with external reproductive organs on their dorsal surface? What advantages or disadvantages would this provide?

NO, I do not recall any vertebrates with external reproductive organs on their dorsal surface.

Explanation:

Usually the urogenital systems in vertebrate includes a combination of reproductive and excretory tissues. And it is a very common feature in vertebrates.

Disadvantages:

Advantage:

i believe the answer would be b. hope it : )