Question

what do the digestive, respiratory, circulatory ,and excretory systems all have in common

Answer 1

Hey mate!!!

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The common component of Digestive, Respiratory, Circulatory and Excretory system is Blood Vessels .

The blood vessels carries the required materials with the help of Blood like

• Absorbed nutrients from Digestive System

• Gases (OXYGEN and Carbon dioxide) in respiratory system

• De-oxygenated and Oxygenated blood in Circulatory system

• Waste materials like Urea in Excretory System .

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Hope this helps mate!!!

Answer 2

These transport materials and fluids in the body.

Explanation:

• The digestive system has the role to break down the complex food molecules into simple forms so that these can be easily utilized by the body.
• The respiratory system aids in circulating the oxygen all over the body and release the carbon dioxide out of the body.
• The circulatory system aids in circulating the blood, spleen and other fluids all over the body.
• The excretory system discharge the urine and fecal matter out of the body.
• Thus food, carbon dioxide, oxygen and waste are moved from one location in the body to the another in these systems.

Learn more about excretory system:

Difference between excretory system in plants and excretory in system animals​: https://brainly.in/question/13909609