Frogs have a heart and blood vessels like all other vertebrates. The heart pumps deoxygenated blood from the body to the lungs, and then pumps oxygenated blood from the lungs to the body. However, frogs only have a three chambered heart, which permits oxygen rich and oxygen poor blood to mix. This is less effecient than the four chambered hearts of mammals and birds.
Because when mammals breathe (Respiratory) it causes their blood to circulate (Circulatory) ad they need their blood to circulate to live. Hope this was helpful. :)
Sea lions have a closed circulatory system, which is typical for mammals. In this system, blood is contained within vessels and is pumped by the heart, allowing for efficient transport of oxygen and nutrients throughout the body. This adaptation supports their active lifestyle both in the water and on land.
That is the correct spelling of "amphibian" (animal dwelling on land and in water).
No they are not. They are land mammals.
An amphibian is an animal that lives on both land and water.
A typical amphibian lives on the land until it is time to breed and lay eggs, when it returns to the water.
amphibian means the object can go onto water or land. the plane- Cessna Caravan Amphibian can land on water, and has extend-able landing gear to land on a runway as well!
No, an amphibian(like a frog) is a creature that can live in water and on land. Chipmunks are rodents.
On land - it is a mammal - not a fish or amphibian !
An amphibian is an animal that can live in the water and on land.
amphibian
Amphibian