Bats and birds are both capable of flight, but their wings have different bone structures. Which statement best supports the relationship between bat and bird wings?单项选择题
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Question at position 25 Analogous anatomical structures in two different specieshave similar functions.are derived from the same ancestral structure.were formerly useful, but are now useless.have different functions.Clear my selection
Question at position 2 Ichthyosaur was a large aquatic reptile of the Mesozoic, some 150 million years ago. Fossils show that it had a dorsal fin and a tail just as fish do, even though its closest relatives were four-legged terrestrial reptiles that had neither dorsal fins nor aquatic tails. The dorsal fins and tails of ichthyosaurs and fish areanalogous.homologous.examples of genetic drift.vestigial.Clear my selection
If similarities between two structures in different organisms reflect independent evolution, these structures are :
The wings of a bat and a bird are examples of
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