0
Why would Paleontolgists consider dinosaurs had four chambered then a three chambered heart?
Wiki User
∙ 13y ago
As they get a better understanding of prehistoric creatures, and more fossilised specimens are uncovered, peoples perception of what the animals physiological appearance was, changes.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
A dinosaurs heart contains how many chambers?
The heart consists of 4 chambers - 2 atria and 2 ventricles. The smaller atria are about 1/3 the size and volume of the ventricles. The left ventricle is the largest chamber of the heart, with about 3 times more muscle mass than the right ventricle - both ventricles share a similar volume capacity. Due to the predominant size of the left ventricle, it is not surprising that 70% of all myocardial infarctions occur within the left ventricle. While the heart's chambers' primary purpose is to fulfill the mechanical function of pumping blood, other functions include influencing heart rate and serving several endocrine roles.
What are the benefits of a 3 chambered heart?
There are few benefits to a 3 chambered heart, a 4 chambered heart is more effective.
Do all mammals have 3 chambered hearts?
no all mammals do not have 3 chambered heart..... only few have 3 chambered heart
How many chambers are there in the heart of a crocodile?
A crocodile has a four-chambered heart.
How many chambers does a reptile heart have?
Most reptiles have a 3-chambered heart. Crocodiles and alligators have a 4-chambered heart.
Did a t rex have a 3 or 4 chambered heart?
T-REX'S HAVE NO HEARTS!!!!!! they are very heartless animals rawr. o-<--<l8 skateboarder.
Why do crocodiles have a four-chambered heart?
Crocodiles may have had an ancestor that was starting down the path to being warm-blooded. Crocodiles are related to dinosaurs and their modern descendants, birds, which also have four-chambered hearts. The four-chambered heart allows for more efficient blood circulation.
A dinosaurs heart contains how many chambers?
The heart consists of 4 chambers - 2 atria and 2 ventricles. The smaller atria are about 1/3 the size and volume of the ventricles. The left ventricle is the largest chamber of the heart, with about 3 times more muscle mass than the right ventricle - both ventricles share a similar volume capacity. Due to the predominant size of the left ventricle, it is not surprising that 70% of all myocardial infarctions occur within the left ventricle. While the heart's chambers' primary purpose is to fulfill the mechanical function of pumping blood, other functions include influencing heart rate and serving several endocrine roles.
What are the benefits of a 3 chambered heart?
There are few benefits to a 3 chambered heart, a 4 chambered heart is more effective.
Do all mammals have 3 chambered hearts?
no all mammals do not have 3 chambered heart..... only few have 3 chambered heart
When was The Four-Chambered Heart created?
The Four-Chambered Heart was created in 1950.
Do koalas have a four chambered heart?
All mammals have a four chambered heart.
How does the heart of crocodiles differ from that of other reptiles?
they have 4 chambered heart , instead of a 3 chambered heart .
How many chambers are there in the heart of a crocodile?
A crocodile has a four-chambered heart.
Four chambered heart vertebrates?
-Name a vertebrate that has a 4-chambered heart -A hummingbird would be one good example of a vertebrate that has a four chambered heart.
Does a horse have a 4-chambered heart?
Yes. Dogs are mammals, and a 4 chambered heart is physical feature of mammals.
What are the 3 chambers of the heart?
There are few benefits to a 3 chambered heart, a 4 chambered heart is more effective.
