Answer:
The left and right atrium
Explanation:
The heart has four chambers: two atria and two ventricles.
The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.
The right ventricle pumps the oxygen-poor blood to the lungs.
The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
The left ventricle pumps the oxygen-rich blood to the body.
It is about 180 million years old.
I think it’s the umbilical cord
Answer:
They help part of the living organisms
Explanation:
Because the function conserves and it recycle the part tht matters in the living organisms
The two structure that that make up a peanut is the the shell and the seeds. the shell is a woody and hard material that surrounds the seeds, the main purpose of the shell is for protection. the seed is found inside the shell, this is the one that will be eaten or planted