<span>The Excretory System</span>
Answer:
If something is at rest it will stay at rest UNTIL a force acts upon it same thing if it is moving it will go in a straight line unless an outside force is acted upon it
This law is also known as the law of inertia.
The key difference between energy flow and matter cycling is that energy flow shows the energy transmission from one trophic level to next trophic level in food chains while matter cycling shows the flow or cycling of elements through the living and nonliving parts of ecosystems
