Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Lion
The animal with the smallest heart is the fairyfly, a type of parasitic wasp. Their heart is so small that it can only be seen under a microscope. Despite its small size, the fairyfly's heart is still able to pump hemolymph (insect blood) throughout its tiny body.
Dogs have the largest hearts compared to the size of the rest of their bodies. This applies to all breeds of dogs.
all of them hydra & worms dose not have liver
NONe there is no two heart animal ........ DNG AKA DeathNoteGal
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.
Circulatory System
Bundle branch block belongs to a group of heart problems called intraventricular conduction defects (IVCD).
Any warm blooded animals belong in the mammal group, Like kangaroos, dogs, cats, horses, mice, bears, etc.
You Belong to My Heart was created in 1944.
heart
You Belong to My Heart - 1945 is rated/received certificates of: USA:Approved
You Belong to My Heart - 1945 was released on: USA: 18 October 1945
heart
The circulatory system