What is the name of the third, centrally situated light-sensing organ on a Triops head?
Answer
Naupliar eye
The Triops possesses three light-sensing organs on its head. Two of these are the compound eyes located on stalks on the sides of the head. The third, distinct light organ situated centrally on the top of the head is specifically termed the naupliar eye. This central eye is crucial for detecting variations in light levels, which assists the organism in navigating the often turbid, temporary freshwater environments it calls home, forming a highly adapted visual system.

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