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Their cells are too close to the animal's exterior surface.

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13y ago

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Do flatworms have a need for circulatory or respiratory systems?

Flatworms do not have a circulatory system because they are thin enough for nutrients and gases to diffuse directly through their bodies. They also lack a respiratory system as they absorb oxygen and release carbon dioxide through their skin.


How do the circulatory and respiratory systems related?

they are related because they are


How are the respiratory system and the circulatory are the same?

There the same because there both systems.


What are the circulatory and respiratory systems called?

the circulatory system and the respiratory system are the names


How do the diseases in respiratory and circulatory systems begin to develop?

Diseases of the circulatory and respiratory systems begin to develop due to disorders of the heart and lungs.


What system does the circulatory system work with to obtain oxygen for the body?

The circulatory and respiratory systems work together to get oxygen to cells. Oxygen transfers from the respiratory to the circulatory system at the capillaries surrounding the alveoli.


What do the respiratory and the circulatory systems do together?

Working together, the respiratory and circulatory systems perform gas exchange from the blood to the lungs. This exchange occurs at the alveoli.


Which two organ system are involved in removing carbon dioxide from the body?

1. Respiratory system 2. Cardiovascular system


How can a person's lifestyle affect the performance of the respiratory and circulatory systems?

Smoking, lack of exercise, lack of attention to asthma, and exposure to irritants such as dust can all affect the performance of the respiratory and circulatory systems.


Which body systems are involved in respiration?

respiratory system Circulatory system


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The respiratory system and the circulatory (cardiovascular) system.


What doctor works with both respiratory and circulatory systems?

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