Organic solvents since the contain carbon
A system is contained by its boundary; therefore, the size of a system is limited by its boundary.
Answer:
Accessing food because while they lay on the ocean floor they search for foods and use the water to digest it
Sorry if I’m wrong but I believe it’s the cardiovascular and lymphatic system
Hope this helps!
Answer:
Actin filaments return to their original positions (does not occur in muscle contraction, according to the sliding filament model).
Explanation: