2 areas separated by something like a valve.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Crocodylians, such as alligators, crocodiles, caimans, etc, have four chambered hearts.Testudinidae (turtles), Squamata (amphisbaenians (lizard like), lizards, and snakes), Rhynchocephalia (tuataras); all have two chambered hearts.It varies.
No, not all animals with two-chambered hearts live in the water. For example, some amphibians, like frogs, have two-chambered hearts and live both on land and in water.
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Fish
A tadpole has a two-chambered heart and a frog has a 3 chambered heart.
the amphibians have a three chambered heart whilst the fish have a two chambered heart.
Crocodiles, alligators, caimans and gharials all have four-chambered hearts.
the heart is two chambered.