g hjj
Leaves
The Respiratory System. I like platypuses.
The respiratory system seems like the obvious answer, but you used the word absorb. The respiratory system takes air into the lungs, but the red blood cells (erythrocytes) absorb the oxygen out of the air taken into the lungs. The circulatory system then delivers these red blood cells to the capillaries where the oxygen is traded for carbon dioxide as the cells need.
sand is not a biological tissue but if you add catalase and hydrogen peroxide together, oxygen and water will be formed. This is a process happening in every organ in every organism (especially in the liver) to break down toxic substances like hydrogen peroxide to less reactive substances: oxygen and water.
organelles present in single-celled organisms act in a manner similar to organ systems
You have the organ called as placenta. The foetus gets the oxygen and nutrition from the mother. The blood of the mother and foetus comes very close to each other in the placenta. Both are not mixed up. They are separated by very thin membrane. The surface area of the contact is very large as compared to the size of placenta.
Veins
oxygen and nutrients
A fluid connective tissue knwon as Blood carries oxygen and food
It comes from a temporary organ called the placenta. The fetus is connected to the placenta by the umbilical cord. From the placenta, which is normally attached to the uterine wall, blood, oxygen, and nutrients are transferred through the umbilical cord to the developing fetus.
chicken
the aminotic fluid that the foetus gets before its born and when its a foetus
the aminotic fluid that the foetus gets before its born and when its a foetus
the placenta
the aminotic fluid that the foetus gets before its born and when its a foetus
the (circulatory) respiratory system (blood flow carries oxygen)
The respiratory system obtains the oxygen, the cirrculatory system carries it to different parts in the body.