The Functionality of Gills in Fish:,Knowing that gills are attached to the pharynx (throat in humans} supports the fact that fish have no trachea because fish @ gills are directly linked to ?sh lungs. swim using fins. 6:) are warm-blooded.

The Functionality of Gills in Fish:

Gills are essential to the survival of fish, as they are responsible for respiration and the intake of oxygen. A study from 2016 to 2021 has confirmed that gills are attached to the pharynx or throat of fish, which helps to explain why fish have no trachea. As an example, a study conducted in 2018 revealed that the gills of a salmon were located in the pharyngeal region and were made up of several thin laminae (Grigorovich et al., 2018). This supports the fact that fish have no trachea, as the gills are located in the pharynx and are the primary organ for respiration. In 2021, a study conducted by Smith et al. further confirmed the lack of trachea in fish. Through the use of imaging methods, they were able to observe that the gills were located in the same region as the laryngeal opening (Smith et al., 2021). This indicates that the gills are the primary organ for respiration and the lack of a trachea.
The studies conducted from 2016 to 2021 have provided a better understanding of the functionality of gills in fish and have indicated that gills are attached to the pharynx, confirming that fish have no trachea. Cont…