The answer should be the respiratory system.
When we breathe, air is taken in our body and they travels to the lungs through the trachea. The lungs is the site where the oxygen from the air we just breathed is exchanged with the carbon dioxide (waste).
In the lungs, there's something call air sac, which diffuses the oxygen to the capillaries. At the same time, carbon dioxide from the capillaries diffuses back to the air sac. Then, we breathe out and the carbon dioxide and the remaining substances in the air that we don't need is breathe out.
That explains why there's more oxygen in the unbreathed air than oxygen from breathed air, and less carbon dioxide in unbreathed air than breathed air.
And after that, the capillaries transfer these oxygenated blood to the pulmonary vein, and then transfer them back to the heart.
Answer:
solute
Explanation:
The cell membrane with an integral molecule that consists of two similar parts with a specific recess. There are many particles in the extracellular fluid. One of these particles is labeled A.
Structure A is a solute
Solute refers to the component which is dissolved in the solvent.
The solvent is the substance in which the solute is dissolved.
The three important agents which are involved in chemical weathering are –water,, carbon dioxide and oxygen. Among the three most important chemical weathering agent is water. With a simple formula H2O, the two hydrogen atoms bonded to one oxygen atom. This structure of water gives it a polar molecule property due to which it can polarize itself into negative and positive poles. The hydrogen is the positive pole with (+1) charge while the oxygen is the negative pole with (-2) charge and they attract ions opposite to their charge numbers.This exerts a molecular force on the surrounding molecules and they dissociate to get polarized and form new molecule. This process is called hydrolysis where a mineral is dissolved in water and ions from the minerals are carried away. These elements undergo the process of leaching.
I apologize but with no problem I can't help :(
Answer:
an assisted reproductive Technology.
Explanation:
This is the infertility corrective procedures, which involve the removal of the sex-cells of both male and female, the fusion,(fertilization) of these, outside the body (in-vitro fertilization), or isolation of a single sperm and fussing it with an ovum(intracytoplasmic sperm injection) to form the zygote, and the implantation of the zygote back into the uterus, for the normal development to embryo and fetus.
This procedure may also involve the use of the Donor's egg or sperm, or frozen sex cells . Sometimes If the woman egg cells are not receptive, the zygote can be formed from her husband sperm, and carried by another contracted woman called surrogate mother.However, if the zygote is formed from a donor's egg the contracted woman is called a gestational mother.
Generally factors such as age, legal procedures of each country, physiology of the couples, emotional status, religion, complications in the child physiology, are some of the factors that may affect the efficiency of this procedure. Non the less this medical procedures has saved many marriages and made many couple happy.
