I really don't know what you are refering to. The gills are covered by the operculum which are boney plates often called the gill plates. There is no thin membrane that I know of.
They are red because you can see the colour of the red blood through the thin walls of the gills. The gills carry the oxygenated blood into and around the fish just as your lungs do for you.
the water enters threw the gills oxygen from the water passes threw a thin membrane and into the blood stream carbon dioxide passes from the blood into the water in the gills so that means that the circulation system and the resportory system are working together
Oxygen is obtained by diffusion from water flowing over the gill membranes, where it dissolves in the thin, moist epithelial layer of the gills. This exchange of oxygen and carbon dioxide occurs due to the difference in concentration gradients between the water and the blood vessels in the gills.
It is a thin lining over the eye of a frog which gives it extra protection
Fish have gills, which are specialized structures that extract oxygen from water as it flows over them. Gills are made up of thin filaments with a rich blood supply that allows for the exchange of oxygen and carbon dioxide. Fish use their gills to absorb oxygen from the water and release carbon dioxide.
The cell membrane is the thin layer that holds cells together. Cell membranes are used as barriers and for protection.
I normally remove the gills. The gills, being very thin, are likely to burn. This can give you a gritty feeling when eating.
False
the cell membrane is as flexible barrier outside of the cell.
The thin living membrane surrounding the cytoplasm is called the cell membrane or plasma membrane. It acts as a barrier that controls the passage of substances in and out of the cell, helping to maintain cell structure and function.
When sound hits a thin membrane, the membrane vibrates, causing it to produce sound waves in the air. The frequency of the sound produced will depend on the vibrational frequency of the membrane. This phenomenon is commonly observed in musical instruments like drums or cymbals.
the membrane is called the mantel