A silkworm heart has one chamber. Unlike vertebrates, which typically have multi-chambered hearts, silkworms and other insects possess a tubular heart that functions as a single chamber to pump hemolymph (the insect equivalent of blood) throughout their body. This design is efficient for their open circulatory system.
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