Answer:
left atrium
Explanation:
The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium, blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.
Most sponges I see are some what symmertrical, but not completely. I would say that it is Translational surgery, and the soak up holes repeat them selves.
I would think they would probably hide from the people that are infected.
In a eukaryotic cell, the nucleus contains the genetic information to control the cell functions :v
Answer:
Just open your book or worksheet or file they will be there