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The bacterium has very simple life style. Most of them are non pathogenic. It is unicellular. It is very small in size. Every thing that bacterium needs is available in the same cell. So they do not need the circulatory system. That is why the number of bacteria on the earth is estimated to be 5,000,000,000,000,000,000,000,000,000,000. The man is most complicated of all the animals, specially due to his brain. (Although most of them work as per basic instincts!) He needs circulatory system to to have oxygen and nutrients and to carry away the carbon bi oxide and waste products of metabolism. The number of human being is about 7,000,000,000 only.
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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 system in your body does not need muscle tissue?
circulatory system
Do you need the circulatory system to for survival?
yes, of course.
If the circulatory system isn't working what diseases may occur?
If your circulatory system is not working, you do not need to worry about diseases because you will be dead.
What does the circulatory and excretory system aid in?
the circulatory system distributes oxygenated blood all over your body, which your organs need. The excretory system i dno
What do the venules do in the circulatory system?
i am not sure but need to know for a project today
How does respiratory and circulatory system in a land vertebrate work together?
Because when mammals breathe (Respiratory) it causes their blood to circulate (Circulatory) ad they need their blood to circulate to live. Hope this was helpful. :)
Which system would need to work together to overcome infections?
digestive and circulatory
Does the circulatory system transport hormones to body tissues?
Yes, the circulatory system is responsible for transporting hormones to body tissues. It also carries oxygen, nutrients, and waste to where they need to be.
