Answer:
So that the baby is no longer attached to the placenta.
Answer:
I believe it;s the difference in pressure
Explanation:
This is caused by the diaphragm contracting and therefore expanding the thoracic cavity. This increase in volume causes a decrease in pressure.
Answer:
No
Explanation:
I don't seem to see any where to drag
Answer: i think that its D and that might be just my opinion
Explanation:
all of the are good answers but if you get it wrong i truly apologize
Answer:
The heart is a muscle and therefore it can be stimulated by electrical impulses.
Explanation:
In the heart, the electrical activity is generated in the SA node and conducted from the right atrium to the left atrium in order to contract myocardial cells