4
Yes, 4 is correct.
But, it depends on what type of creature you're asking about.
Fish: 2 total; 1 in, 1 out.
Birds & Mammals: 4 total; 2 in, 2 out.
Reptiles & amphibians: 3 total; 2 in, 1 out.
Hope this helps : )
There are four chambers in a human heart.
4 chambers as they are mammals.
It has 4 chambers in the human heart
A hippopotamus has a four-chambered heart.
10.
The human heart has two receiving and two outgoing chambers. Without the proper functioning of all chambers, the heart may have problems.
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.