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Biology, 28.10.2019 21:31 decorajackson01

Refer to this portion of a dichotomous key for fish identification to answer the question.
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1. (a) has a single dorsal fin β†’ 5
(b) has a double dorsal fin 2
2. (a) one fin is spiny, the other is smooth
(b) one fin is not spiny or smooth 4
5. (a) has small fin on back near tail β†’6
(b) has no fin on back near tail β†’7
6. (a) has barbs near the mouth β†’ catfish
(b) does not have barbs near the mouth
7. (a) tail is asymmetrical β†’ 8
(b) tail is symmetrical 9
10. (a) scales are small β†’ trout
(b) scales are large whitefish
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what is the next step to complete to identify a fish that has a single dorsal fin and no fin on the back near the tail?

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Refer to this portion of a dichotomous key for fish identification to answer the question.
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