Pimples?
blackeads? or white heads
Why did you post this to Brainly? This is a personal question. We shouldn be answering that.
Answer:
A. . Blood from the veins enters the ventricles.
C. Atria push blood into the ventricles
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
1. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.
2.The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
3. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.
4. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Answer:
Too much melatonin can have the opposite effect of its intended purpose. It can make it harder to sleep because your normal circadian rhythms will be disrupted. An overdose can also leave you feeling groggy and sleepy during the day and give you nightmares or extremely vivid dreams at night.
Explanation:
I would say the answer is c bc your being very Proactive in your Health if you’re providing