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Homologous structures are structures found in one species that have the same basic anatomical structure and embryonic origin as those found
In another species. If homologous structures are found on organisms of two different species, the species are related, even if only distantly.
Which of the following structures are homologous and illustrate evidence of an evolutionary relationship?
OA
a wasp's wing and a dolphin's flipper
OB
a bird's wing and a butterfly's wing
Ос.
a whale's flipper and a cat's leg
OD.
a catfish's fin and a bee's antenna
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Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has 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 ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10