Answer:
Both miscarriage and stillbirth describe pregnancy loss, but they differ according to when the loss occurs. In the United States, a miscarriage is usually defined as loss of a baby before the 20th week of pregnancy, and a stillbirth is loss of a baby after 20 weeks of pregnancy.
Explanation:
Miscarriage is when an embryo or fetus dies before the 20th week of pregnancy. Miscarriage usually happens early in your pregnancy — 8 out of 10 miscarriages happen in the first 3 months. Lots of people experience this kind of pregnancy loss. In fact, 10-20% of pregnancies end in miscarriage. Stillbirth is the delivery, after the 20th week of pregnancy, of a baby who has died. Loss of a baby before the 20th week of pregnancy is called a miscarriage. A baby is stillborn in about 1 in 200 pregnancies.
Hope this helps!
The right answer is Electrocardiography (or Electrocardiogram).
In a typical plot, one can notice five characteristic waves. They are called P, Q, R, S and T. The illustration below shows what a normal electrocardiogram looks like:
* the P wave marks the depolarization during the contraction of the atria;
* the PR interval indicates the time required to transmit the electrical impulse of the sinus node of the atria to the ventricular muscles;
* the QRS complex marks depolarization and ventricular contraction;
* the QT interval corresponds to the global ventricular repolarization;
* T wave refers to the end of ventricular repolarization.
Answer:
When Miguel has a stressful day at work he is obviously under much stress and has not been able smile. So just looking at the mirror and smiling reminds him of how good it feels to smile. then makes him feel good
Explanation:
I put the explanation in the answer
