The answer is false. there are five types of biomes.
        
                    
             
        
        
        
Specialized tissue on the wall between the atria. Electrical impulses pass from the pacemaker (SA node) through the _______ and the atrioventricular bundle (bundle of His) toward the ventricles.atrium (pl. atria)One of two upper chambers of the heart.capillary<span>Smallest blood vessel. Materials pass to and from the bloodstream through the thin walls. They have walls that are only one endothelial cell in thickness. This delicate, microscopic vessel carries nutrient-rich, oxygenated blood from the arteries and arterioles to the body cells. There, the nutrients are burned in the presence of oxygen (catabolism) to release energy.
At the same time, waste products such as carbon dioxide and water pass out of the cells and into these blood vessels. Waste-filled blood then flows back to the heart in small venues, which combine to form larger vessels called veins.</span>carbon dioxideGas (waste) released by body cells, transported via veins to the heart, and then to the lungs for exhalation.coronary arteriesBlood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle.deoxygenated bloodBlood that is oxygen-poor.diastole<span>Relaxation phase of the heartbeat.</span>
        
             
        
        
        
Hello there, mate! Let's solve together:
With the end goal for cells to endure, they require supplements as glucose and minerals in addition to oxygen. 
Moreover, they need to discard byproducts. Cells additionally depend on their organelles and dissemination for endurance. 
Without oxygen, minerals and the evacuation of side-effects, cells don't endure.
 
        
             
        
        
        
Answer:
Regions of the digestive system can be divided into two main parts: the alimentary tract and accessory organs.
Explanation: