Although "further disturbances" is pretty vague, both climate change and nonnative species will definitely have a potentially long term impact on an ecosystem
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. ... Solids, liquids and gases all expand when heat is added. Matter can change from one state to another when thermal energy is absorbed or released. ... heated, it absorbs thermal energy and its temperature rises. At some point, the temperature stops rising and the ice begins to change into liquid water. The change from the solid state to the liquid state is called melting.
I can just send a picture it’s way to confusing
Here are the steps;
step 1. The activated myosin head binds to actin, forming a cross bridge.
Step 2. ADP is released and myosin slides the thin filament toward the center of the sarcomere.
step 3. ATP binds to the myosin head and detaches it from actin
step 4. ATP is hydrolyzed to ADP and P(i) and the energy released re-elevates the myosin head.
After the depolarization wave front passes through the atria, it enters that AV node which is located at the apex of the triangle of Koch. It would be the AV node that <span>collects the depolarization wave from the atria to pass it onto the ventricles. Hope this answers the question.</span>