Answer:
The correct answer will be- by lowering the surface tension at air/liquid transition.
Explanation:
Pulmonary surfactant is the mixture of proteins and lipids produced by the type II epithelial cells.
The surfactant is selected into the alveolar sacs where the surfactant reduces the surface tension of the air/liquid interface to 1 mN/m. The lipid content of the surfactant called dipalmitoylphosphatidylcholine or DPPC forms a surface film which lowers the surface tension.
This power surface tension reduces the work of breathing and thus prevent the alveolar sac from rupture or collapse.
Thus, by lowering the surface tension at air/liquid transition is the correct answer.
Evergreens are plants that maintain their leaves in all seasons and include trees such as elm, pine and cedar.
<u>Explanation:</u>
There are several flowering plants in the earth they are grouped into 2 major divisions, the hardwood or evergreen trees such as elm, pine and cedar. And the deciduous trees such as the seasonal trees which flower only during a particular season.
They have a needle like morphology that allows them to sustain any extreme climate. They are usually found in the extreme climate drift prone regions. They also have specialist leaf structures to formulate water loss.
The number of phenotypes produced for a given trait depends on the number of genes that control that trait. so the answer is 1
Answer:
ok I can help you alright
Phylogenetic trees are often used to track what evolved from what.
