2 chambers
Jawless fish are the oldest group of fish, belonging to the class Agnatha. Within this class, they are further divided into two orders: the Petromyzontiformes (lampreys) and the Myxiniformes (hagfish).
In Phylum Chordata, jawless fish are grouped within Superclass Agnatha. Examples of jawless fish include lampreys and hagfish, which combined total about 120 different species.
Jawless fish are Phylum Chordata, they are also known as paraphyletic, they still are around today.
Class Agnatha, which includes jawless fish like lampreys and hagfish, is significant because it represents the most ancient lineage of vertebrates. They provide important insights into the early evolution of vertebrates, particularly the development of key features like jaws and paired fins. Additionally, their unique characteristics and life histories make them valuable subjects for understanding vertebrate diversity and adaptations.
The scientific term for the human pulse is "heart rate," which is measured as the number of times the heart beats per minute. It is an indicator of cardiovascular health and can be measured at various points in the body, such as the wrist or neck.
four.
4
Maybe your mean four chambers?
some only have three chambers
i think it is 4 chambers in the Human Heart
some only have three chambers
4 heart chambers
No. The lower chambers of the heart are called the ventricles. The atria are the top chambers of the heart.
Their are 2 heart chambers.
There are 4 chambers to the heart.
The bird's heart has 4 chambers.
No, not all animals have the same number of chambers as humans.