Question

Endostyle is found in :
(a) Petromyzon
(b) Myxine
(c) Herdmania
(d) all of these
Muller's organ is found in :
(a) Herdmania
(b)Amphioxus
(c) Petromyzon
(d) All of the above​

Answer 1

Endostyle: Answer is (D)

Muller's Organ: Answer is (B)

Explanation:

• Endostyle : An endostyle is a longitudinal ciliated notch on the ventral mass of the pharynx which produces bodily fluid to assemble nourishment particles. It is found in urochordates and cephalochordates, and in the larvae of lampreys. It helps in moving nourishment to the throat. It is also called the hypopharyngeal groove.

• Muller's organ: A group of various scolopophores framing a swelling; in Acridoidea, applied to the internal surface of every tympanum and associated by the sound-related nerve to the metathoracic ganglion.