Question

which characteristic of cichlids enabled them in their evolutionary radiation?
o second set of functioning jaws
o enlarged gills
o wider tail fin
o extra set of lateral fins
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Explanation:

Cichlids have a unique feature of a second set of functioning jaws in their throats, which allows for a wide - variety of feeding strategies and has played a key role in their evolutionary radiation. Enlarged gills, wider tail fins, and extra sets of lateral fins are not the main factors enabling their evolutionary radiation.

Answer:

First option. Second set of functioning jaws