Question

A tactile organ in cockroach is

• A. Antennae
• B. Ommatidia
• C. Fanestrae
• D. Anal cerci

Answer 1

Answer: (A)

The correct option is A Antennae

• Antennae are the paired appendages used for sensing. They are multifunctional sensory appendages that generate the olfactory, gustatory, tactile, thermal and humidity senses.
• Ommatidium contains a cluster of photoreceptor cells surrounded by support cells and pigment cells.
• Fenestra is the opening in the skull or other bones.
• Anal cerci are a pair of appendages at the end of the abdomen, arising from near the 10th segment of the body of a cockroach.

Thus, the correct answer is an option (A).