Oxygen is carried from the mother to the fetus through the placenta and umbilical vein.
The circulatory system
To exchange gases such as co2 and o2
The exchange of gases between the blood of the mother and that of the fetus through the placenta. It may be one of three different types- anxaemic, acapnic, or anaesthetic.
In the lungs, exchange of gases occurs in the alveoli(sing: alveolus).
The capillary is the smallest type of the vessels . it consists only of two epithelial cells. and its main function depends on its permeability . so , it is the main site for exchange of nutrition and gases. from the tissues to the circulation and from circulation to the tissues .
During the stage of photosynthesis, the exchange of gases occur in the leaves.
perfusion
Light is necessary for the exchange of gases in plants.æ Light is what instigates photosynthesis and without photosythesis there can be no gas exchange.
the blood vessel which allows gas exchange to occur is the capillaries
covection
yes
YES