Refer to this portion of a dichotomous key to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 5. (a) has a small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. ( a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® sturgeon (b) tail is symmetrical ® 8 what would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical?