Question

Eyes of cephalopods are

• A. Exactly similar to vertebrate eyes
• B. Functionally similar to vertebrate eyes
• C. Structurally similar to vertebrate eyes
• D. Superficially similar to vertebrate eyes

Answer 1

The correct option is D Superficially similar to vertebrate eyes

There are two eye types found in cephalopods: the pinhole type eye and the camera-type eye. The eyes of cephalopods are single-chamber eyes which show resemblance to vertebrate eyes. However, there are marked differences such as the cephalopod eye having an everted retina instead of an inverted retina. Cephalopods usually have large and mobile eyes with which they constantly scan their environment.

Hence, the correct option is (D)