False
Rotifers breathe through their body surface via diffusion. They have thin outer coverings that allow oxygen to pass through into their bodies and carbon dioxide to diffuse out. Some species also have specialized structures called cilia or respiratory tubes that aid in gas exchange.
Venus might have about 38% of oxygen but the atmosphere is thin on Venus
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.
mercury's atmosphere is thin so sound waves don't travel very well and there is little oxygen.
Ice, with a thin oxygen-ozone atmosphere.
The atmosphere on Mercury is about 42% oxygen, but is very thin as to be almost non-existent.
no because oxygen cannot be hammered
The alveoli are the hollow spheres of cells within the lungs where oxygen and carbon dioxide are exchanged. They are thin-walled, and closely associated with the thin-walled capillaries that surround them. Oxygen and carbon dioxide diffuse across these thin walls to move from the blood to the lungs.
No, blood does not physically thin when you increase in altitude. However, the lower oxygen levels at higher altitudes can lead to the production of more red blood cells to compensate for the decreased oxygen availability. This can make the blood more concentrated, but it does not physically "thin" it.
Because emphysema reduce the oxygen perfusion (transfer) from alveoli into the blood thus also reduce the oxygen supply to the muscle and organ. Reduce the oxygen delivery to the periphery cause weight loss and thus they (emphysema patient) look thin.
Saturn's moon Dione has a thin oxygen atmosphere. Dione, which has large craters, is a relatively small moon, measuring 698 miles in diameter.
It might have a tenuous (ie very, very thin) atmosphere made of oxygen and ozone, but as far as I am aware even that has never been proven.