1. electrical signals travel toward the heart. 2. signal received by the atrioventricular node. 3.signal by the nodes in the atrium. 4.the atria contracts. 5. signal transferred to the ventricles. 6. the ventricles contract.
Number 3 is the plants take in carbon dioxide and release oxygen so that we can breathe and the use the carbon
<span>Level of depression/////////////</span>
Effector, control center, receptor, and feedback are all involved in maintaining homeostasis. Lack of change is NOT involved in maintaining homeostasis.<span />
Yes oceanic crust is denser than continental