Question

In birds sound is produced by
A. Larynx
B. Syrinx
C. Vocal Cords
D. Pharynx

Answer 1

We have to know that many birds' melancholic call comes from a hidden organ buried deep inside their chests: a rare voice box of its kind. Through this organ that is special to birds, almost all birds emit sound. Without the vocal folds of mammals, it emits sounds.

Complete answer:
We must remember that the larynx is an organ involved in breathing, generating sound and shielding the trachea from food aspiration in the upper part of the body.
As we know that the pharynx has the primary function of warming and humidifying the air until it enters the lungs.
In short, there are folds of tissue found in the larynx in the vocal cords to shield the airway from choking on material in the throat.
We have to know that the Syrinx is the bird's vocal system. It is situated at the base of the trachea of a bird. The sound is created by vibrations induced by air flowing through the syrinx from some or all of the membrane tympanic forms (the walls of the syrinx) and the pessulus.
The syrinx makes it possible for certain bird species to imitate human voice. The syrinx is situated where the trachea forks into the lungs, unlike the larynx in mammals. Lateralization is also possible, with muscles separately modulating vibrations on the left and right branches such that certain songbirds can produce more than one tone at a time.
So, the correct answer is “Option B”.

Note:
We have to know that the location, composition and musculature of the syrinx differ widely across groups of birds. The syrinx covers the lower end of the trachea and the upper bronchial sections of certain classes, in which case the syrinx is considered to be tracheobronchial. It is the most frequent type of all songbirds and the one found in them. As in some non-passerines, especially owls, cuckoos and nightjars, the syrinx may be confined to the bronchi.