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Because their ancestors had 3-chambered hearts.
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∙ 13y ago
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Do all mammals have 3 chambered hearts?
no all mammals do not have 3 chambered heart..... only few have 3 chambered heart
Do birds have chambered hearts?
Yes. Birds have four-chambered hearts.
Do amphibians have four chambered hearts?
no. amphibians have three chambered heart i.e., 1-A 2-V
How many chambered hearts does a zebra have?
All mammals have 4 chambered hearts.
Explain how tadpoles and frog hearts differ?
A tadpole has a two-chambered heart and a frog has a 3 chambered heart.
To what animal group does an animal with a two-chambered heart belong to?
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
To what animal group does a animal with two chambered heart belong?
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
To what animal group does a animal with two chambered heart belong to?
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
To what animal group does an animal with two chambered heart belong to?
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Do reptiles have chambered hearts?
Some do. Crocodilia, which includes crocodiles, alligators, caimans and gharials, all have four-chambered hearts. Most others have three-chambered hearts.
Did a t rex have a 3 or 4 chambered heart?
T-REX'S HAVE NO HEARTS!!!!!! they are very heartless animals rawr. o-<--<l8 skateboarder.
How many chamberse douse a amphibian have in its heart?
Most have 3 chambered hearts.
