Round 6: Tossup 10

Pax6 regulates the development of one component of this organ across multiple species. Crystallins make up one part of these organs in vertebrates. A theory of the Cambrian Explosion posits that the evolution of these organs started an “arms (-5[1])race.” These organs are filled with aqueous humor, which is secreted (15[1])from the ciliary body. (15[1])Large examples of these organs in (*) giant squids are focused through movement, rather than changing (-5[1])shape. Thomas Hunt Morgan compared white and red examples of these organs in Drosophila. For 10 points, name these sensory organs that allow the perception of visual information. ■END■ (10[2])

ANSWER: eyes [anti-prompt on retina or lens by asking “what larger organ is it a part of?”]
<Science - Biology, Sarkar> | VAULT II Packet 06
= Average correct buzzpoint

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