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How many birds have a four-chambered heart?
All humans have four chambers in their heart.
Do chickadees have a four chambered heart?
yes their heart is much like a human heart in that aspect.
Why does a birds heart work better than a frogs?
Birds have a 4- chambered heart so the blood doesn't mix Frogs have a 3- chambered heart so the blood mixes
What type of heart does birds And mammals have?
they both have a four chambered heart
What vertebrate have a heart with four chambers?
Mammals, birds, and crocodilians have a four-chambered heart.
There are four chamber inside the heart of what?
Mammals and birds have four-chambered hearts.
How many chambers are there in an alligators heart?
Alligators have a 4 chambered heart, just like birds and mammals
Why is a four chambered heart the most effecient arrangement for very active animals such as birds?
In the four chambered heart all the blood is oxygenated. In the three chambered heart the oxygenated blood is mixed in with the un-oxygenated blood and is therefore not as effective as an oxygen carriers.
Are birds four hearted?
No. Birds have only one heart, but they have four chambered hearts like all mammals and crocodiles do.
What animals have two chambered hearts?
Fish hearts have two chambers, one atrium and one ventricle. They draw in deoxygenated blood in a single atrium, and pump it out through a ventricle.
Do birds have chambered hearts?
Yes. Birds have four-chambered hearts.
Where did the first four-chambered heart evolve?
The first four-chambered heart is believed to have evolved in reptiles, specifically in the ancestors of modern-day crocodiles and birds. This adaptation allowed for complete separation of oxygenated and deoxygenated blood, resulting in more efficient circulation and higher metabolic rates.
