Answer: The function of the Alveolar type II cells is that they secrete a lipoprotein material that is known as surfactant. The primary function of the surfactant is to reduce the surface tension in the alveoli.
Explanation:
Type II have an important function Type II as they secrete pulmonary surfactant in order to lessen the surface tension of water and allows the membrane to separate, therefore increasing its capability to exchange gases.
+ not having enough food for everyone
+ how many people migrate
+ birth/death rates
+ how much water there is
+ how much nutrients/minerals are available
+ how much trees/oxygen is available
Nutrients enter a cell up the concentration gradient by the process of active transport.
Rapid environmental changes can cause:
1) Species can become vulnerable to extinction.
2) A decrease or increase of populations.
3) Diversity of species.
The answer to your question would have to be C
