Both have thier own pacemakers
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The heart of fish have two chambers. The heart of reptiles and amphibians have three chambers. The heart of mammals have four chambers.
A shark heart has two chambers.
the human heart contains four chambers and it is the ventricles (the two lower chambers) that do the pumping
There are four chambers in the human heart. There are two atria (the two upper chambers) and two ventricles (the two lower chambers).
the upper chambers of the heart are called the right and left atrium and they are the receiving chambers of the heart
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.
The two top chambers of the heart are called the right and left auricle respectively
The upper two chambers of the heart are the right atrium or auricle, and the left atrium or auricle.
Clams have the most complex heart of the mollusks, with 3 chambers.
They have two chambers.
The heart has 4 chambers. The "collecting chamber of the heart", or the atria , is the two chambers that are located above the other two chambers. It carries the responsibility in helping to pump the blood out of the chambers and making sure no blood pumps back in.