Answer:
What system interacts to perform the functions of regulation?
Body systems interact to perform the functions of regulation, nutrient absorption, reproduction, and defense from injury or illness
Explanation:
energy flows in only one direction through an ecosystem.
Answer:
Colloids or colloidal solutions are mixtures in which microscopically dispersed insoluble particles of one substance are suspended in another substance. The size of the suspended particles in a colloid can range from 1 to 1000 nanometers (10-9 meters).
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