When the heart contracts, called systole, blood pressure increases. When the heart relaxes, called diastole, blood pressure decreases. Systole phase or contraction is started by the electrical cells of the sinoatrial node. The diastole phase is the period when the heart relaxes after contraction.<span> </span>
I think the Atrial fibrillation is the uncoordinated beating of the atria rapid. These are rhythm in which all the atrial activity is depicted as chaotic undulations of the base line. Atrial rhythms include; atrial fibrillation, atrial flutter, premature atrial contraction, wandering pacemaker. Atrial fibrillation can cause an increased risk of stroke, heart failure and other heart related complications.
Function. There, the villi and the microvilli increase intestinal absorptive surface area approximately 30-fold and 600-fold, respectively, providing exceptionally efficient absorption ofnutrients in the lumen. There are alsoenzymes (enterocyte digestive enzyme) on the surface for digestion.
I hope helping with this answer
Answer:
A, D
Explanation:
On image I think it is like melting, and pizza is heterogeneous mixture
