[Campbell Biology P.597] A key difference between the complex camera lens-type eyes of mollu... | Practice Question

A key difference between the complex camera lens-type eyes of molluscs like Loligo and vertebrate eyes, despite their similar appearance, lies in:

  • A: The presence of a cornea.
  • B: The type of photoreceptor cells.
  • C: The direction in which nerve impulses are conducted from the retina.
  • D: The independent evolution from a common ancestor.

Explanation

The text states: 'Evidence of their independent evolution can be found in their structure: Vertebrate eyes detect light at the back layer of the retina and conduct nerve impulses toward the front, while complex mollusc eyes do the reverse.'