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Simply because of how hard it is to get oxygen to all the cells in your body. If you were a single celled organism, oxygen could simply dissolve across your cell membrane. However since you are made up of thousands upon thousands of cells, this is no longer an option. Instead the oxygen needs to be delivered to each cell by a circulatory system, and because you are so big this system needs to be complex so that it works effectively.
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∙ 15y ago
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What part of the human body is more complex your heart or your circulatory system?
Why is your heart more complex than your circulatory
Why don't humans need a complex circulatory system while an amoeba does not?
lol plz help idk
A function of the circulatory system in a mammal?
Mammals have a closed Circulatory system. Parts of the system include a heart and veins. It is complex.
Why does a worm have so many hearts?
The worms simple circulatory system is sufficent to its demands and has had no need to develop a more complex one.
What are some organs of the circulatory system?
The components of the circulatory system include the heart, blood, and blood vessels. The pulmonary circulation is also part of this complex system.
When do you need the circulatory system?
Always! you need the process of the circulatory system in order to breathe and exhale waste.
What doctor would you need if the circulatory system fails?
you would need a cardiology doctor if the circulatory system fails
Why does cockroach not need a circulatory system?
Cockroaches do have circulatory systems, they are are open circulatory systems
The general need for a circulatory system?
There is definitely a general need for a circulatory system. This system carries blood, oxygen, and nutrients to all parts of the body.
What complex protein can carry both carbon dioxide and oxygen in the circulatory system?
Hemoglobin
What system in your body does not need muscle tissue?
circulatory system
Do you need the circulatory system to for survival?
yes, of course.
