A crayfish heart is only a single pump right in the middle of an open circulatory system. It pushes fluid into the body cavity and lets it flow back through the ostia, a group of open ended pores.
The heart of fish have two chambers. The heart of reptiles and amphibians have three chambers. The heart of mammals have four chambers.
A mouse has four heart chambers, similar to other mammals. These chambers include two atria and two ventricles, which work together to pump blood throughout the body.
A perch has two chambered heart, consisting of one atrium and one ventricle. This type of heart structure is common in many fish species.
A lion is a mammal, so it will have four heart chambers.
Four - left and right atrium and left and right ventricle
Their are 2 heart chambers.
There are 4 chambers to the heart.
A shark heart has two chambers.
The bird's heart has 4 chambers.
There are four chambers in a human heart.
There are 4 chambers in a bird's heart.
A sheep heart has four chambers.
there are four chambers!
There's 4 heart chambers in a human, which is a mammle
A reindeer, being a mammal, has four heart chambers.
The human heart has four chambers. The atria are the upper chambers, and the ventricles are the lower chambers.
the human heart contains four chambers and it is the ventricles (the two lower chambers) that do the pumping