Yes it does, but for a frog this is not a problem as it is cold blooded with a slow metabolism. This means that it does not need much oxygen. Frogs are also able to absorb oxygen through their moist permeable skin.
That is yet to be known
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Frogs have underdeveloped lungs, so they must have a moist skin so that oxygen can diffuse into their bodies. Their lungs do not function well enough to be used on their own.
Frogs have lungs just like you do. Tadpoles, however, have internal gills until they turn into frogs. Frogs breathe by pulsing their throat to suck air into and out of their lungs.
adult frogs come up to the surface to get oxygen then go back underwater again then when they need more they come up again
The heart and lungs are so close together because the lungs have oxygen that are pumped into the heart so it can go into the blood stream. The lungs don't have blood but they transmit oxygen to the heart for the blood stream.
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As tadpoles they have gills and swim in the water all day, but when they become frogs they produce lungs and lungs need oxygen. So yes they do need oxygen.
Aerobic fitness is the ability of the heart and lungs to deliver oxygen. This oxygen meets body needs under a variety of circumstances.
Frogs, like all other reptiles, get their oxygen through their lungs
Lungs and moist skin.
Frogs have underdeveloped lungs, so they must have a moist skin so that oxygen can diffuse into their bodies. Their lungs do not function well enough to be used on their own.
Frogs are born with gills, but soon, when they get older, they get lungs, and start breathing oxygen.
Smoking constricts your blood vessels which affect their ability to transport oxygen and other molecules (glucose) to your muscles which will effect their ability to contract. Also smoking makes it harder for your lungs to absorb oxygen.
Amphibians as larvea or tadpoles use gills to obtain oxygen. They then go into a metamorphic stage where they have both gills and developing lungs, and as adult they breath through lungs as we do.
The pollution in the Air can affect the Oxygen composition of the body and the lungs which inhale oxygen for purifying the blood get choked
Frogs are amphibians. Almost all species of frogs have lungs, but lack the diaphragm muscles of humans. They inhale air through their nostrils, inflating skin sacs in their throats, then press down with the mouth muscles to force it into the lungs. The major difference is the ability of frogs to breathe underwater through their skin, in a process called cutaneous respiration. Special blood vessels in the skin allow oxygen to be absorbed directly from the water.
Pneumonia can reduce the ability of the lungs to allow oxygen diffusion across the alveoli if accumulations of pus (exudate) or fluids block significant portions of the lungs.