Each lung is fed oxygen by a separate bronchus. Please select the best answer from the choices provided. T F
2 answers:
Answer:
The given statement is true.
At lungs level, trachea segmented into two primary bronchi: left primary bronchus which enters the left lung and right primary bronchus which enters the right lung.
In each lung, primary bronchi (both left and right) segmented into tertiary bronchi via secondary bronchi.
Tertiary bronchi divide to form smaller airways termed as bronchioles.
These bronchioles eventually connect with alveoli, specialized sac-like structures which form the site for gas exchange.
Thus, we can conclude that each lung is fed oxygen by a separate bronchus.
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Answer:
- At equilibrium, the quantity of a commodity demanded is the same as the quantity of that commodity supplied. i.e. QD = QS. The price at which QD = QS is the equilibrium price.
- When there is a shortage, the quantity of goods demanded would be greater than quantity supplied, as the price falls below the equilibrium price. i.e. QD>QS
- When there is surplus, the quantity of goods demanded is less than the quantity supplied, as price increases above the equilibrium price. i.e. QD<QS.
For example, in the table showing the demand and supply schedule for T shirt at different prices (see file attached), the equilibrium price for a unit of T shirt is $3, at equilibrium, QD = QS (i.e. 30 = 30).
A shortage is recorded when the price of T shirt falls below equilibrium price of $3 as shortage of T shirt is recorded, i.e. @ $2, QD>QS (40>20). A shortage of 20 is recorded.
Surplus occurs as price increases above equilibrium price of which QD<QD, i.e. @ $4, a surplus of 20 is recorded.
