option d. Ned volunteers to pick up garbage every Saturday, which helps clean up his community
The rest of the choices doesn't match what is asked. I chose option d. because by picking up garbage is of the ways that could contribute the cleanliness of the environment. Small actions bring big transcendence towards other people and in that way encourage others to take good part as well.
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.
The Ovaries hold the females infertile eggs, and the Fallopian tubes carry the eggs to the uterus, which is where the offspring is conceived.
1.some benefits of breast feeding for babies are are stronger immune system’s and fewer colds and respiratory diseases.
