Answer:
Endocardium
Explanation:
The endocardium makes the innermost lining of the wall of the heart. It is present over the thin layer of connective tissue. The function of the endocardium is to provide a smooth lining for the chambers of the heart. The valves present in the heart also have endocardium. The dense connective tissue of the heart valves is covered by endocardium.
The presence of the smooth endocardium made up of endothelium reduces the surface friction as blood passes through the heart. The endocardium of heart chambers is continuous with the endothelial lining of the large blood vessels that are attached to the heart.
I need the full question but we breathe air which is 02
Answer:
Read below.
Explanation:
When you have a dream that predicts the future, it is called a mantic dream. Your body senses what's going to happen next in the future. When you go to sleep, your mind tells you that that certain event is going to happen in the future.
Answer: students drinking coffee
Explanation:
The dependent variable is the one that DEPENDS on what is about to happen. In this situation, whether the students scored higher DEPENDS on if they drank coffee.
So the independent variable would be the fact that they drank coffee.
Hope this helps!