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.
The blue whale's heart weighs about a ton. See this site for a reference: http://www.thebigzoo.com/Animals/Blue_Whale.aspRead more: Which_animal_has_the_largest_heart
Birds, all mammals, and crocodiles all have four chambered hearts
you need four hearts first is black then purple third blue and then the last one is red
Four Hearts was created in 1939.
The Four of Hearts was created in 1938.
a dog that pwns Nathens blue waffel
Yes. Every living animal and human has blood.yes all living mammals have blood
i think its 3 but i don't know for sure That is not right up there!! This is: they have four.