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>
From the process of respiration chemical energy in the form of ATP.
C... an animal that is faster than the others will have way better chances of survival. Thus, the animal with the mutation will pass on the trait more
I think its D but I'm not sure
<em>Rocks erode and sediment is deposited, and No sediment is deposited over a long time.</em>
<u>Explanation:</u>
The most common reason for the formation of <em>uncomformity is erosion</em>. The <em>times of formation of the rocks</em> above and below the uncomformity are different when no sediment is deposited over a long time.
The rock above the uncomformity are younger than the rocks below the uncomformity. Types of uncomformity are <em>angular uncomformity, discomformity and non comformity.</em>
In angular discomformity horizontal sedimentary rock layers are formed above sedimentary rock layers that are in tilted position. Discomformity lies between two <em>horizontal sedimentary rock layers</em>. Non comformity lies between<em> sedimentary and igneous rock layers or metamorphic rocks.</em>
